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Martin LJ, Touaibia M. Prevention of Male Late-Onset Hypogonadism by Natural Polyphenolic Antioxidants. Nutrients 2024; 16:1815. [PMID: 38931170 PMCID: PMC11206339 DOI: 10.3390/nu16121815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Androgen production primarily occurs in Leydig cells located in the interstitial compartment of the testis. In aging males, testosterone is crucial for maintaining muscle mass and strength, bone density, sexual function, metabolic health, energy levels, cognitive function, as well as overall well-being. As men age, testosterone production by Leydig cells of the testes begins to decline at a rate of approximately 1% per year starting from their 30s. This review highlights recent findings concerning the use of natural polyphenolics compounds, such as flavonoids, resveratrol, and phenolic acids, to enhance testosterone production, thereby preventing age-related degenerative conditions associated with testosterone insufficiency. Interestingly, most of the natural polyphenolic antioxidants having beneficial effects on testosterone production tend to enhance the expression of the steroidogenic acute regulatory protein (Star) gene in Leydig cells. The STAR protein facilitates the entry of the steroid precursor cholesterol inside mitochondria, a rate-limiting step for androgen biosynthesis. Natural polyphenolic compounds can also improve the activities of steroidogenic enzymes, hypothalamus-pituitary gland axis signaling, and testosterone bioavailability. Thus, many polyphenolic compounds such as luteolin, quercetin, resveratrol, ferulic acid phenethyl ester or gigantol may be promising in delaying the initiation of late-onset hypogonadism accompanying aging in males.
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Affiliation(s)
- Luc J. Martin
- Biology Department, Université de Moncton, Moncton, NB E1A 3E9, Canada
| | - Mohamed Touaibia
- Chemistry and Biochemistry Department, Université de Moncton, Moncton, NB E1A 3E9, Canada;
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2
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Włodarczyk M, Ciebiera M, Nowicka G, Łoziński T, Ali M, Al-Hendy A. Epigallocatechin Gallate for the Treatment of Benign and Malignant Gynecological Diseases-Focus on Epigenetic Mechanisms. Nutrients 2024; 16:559. [PMID: 38398883 PMCID: PMC10893337 DOI: 10.3390/nu16040559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/10/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
The most common malignant gynecologic diseases are cervical, uterine, ovarian, vaginal, and vulvar cancer. Among them, ovarian cancer causes more deaths than any other cancer of the female reproductive system. A great number of women suffer from endometriosis, uterine fibroids (UFs), adenomyosis, dysmenorrhea, and polycystic ovary syndrome (PCOS), which are widespread benign health problems causing troublesome and painful symptoms and significantly impairing the quality of life of affected women, and they are some of the main causes of infertility. In addition to the available surgical and pharmacological options, the effects of supporting standard treatment with naturally occurring compounds, mainly polyphenols, are being studied. Catechins are responsible for the majority of potential health benefits attributed to green tea consumption. Epigallocatechin gallate (EGCG) is considered a non-toxic, natural compound with potential anticancer properties. Antioxidant action is its most common function, but attention is also drawn to its participation in cell division inhibition, apoptosis stimulation and epigenetic regulation. In this narrative review, we describe the role of EGCG consumption in preventing the development of benign reproductive disorders such as UF, endometriosis, and PCOS, as well as malignant gynecologic conditions. We discuss possible epigenetic mechanisms that may be related to the action of EGCG.
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Affiliation(s)
- Marta Włodarczyk
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland;
- Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Michał Ciebiera
- Second Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, 00-189 Warsaw, Poland;
- Warsaw Institute of Women’s Health, 00-189 Warsaw, Poland
- Development and Research Center of Non-Invasive Therapies, Pro-Familia Hospital, 35-302 Rzeszów, Poland
| | - Grażyna Nowicka
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland;
- Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Tomasz Łoziński
- Department of Obstetrics and Gynecology, Pro-Familia Hospital, 35-302 Rzeszow, Poland;
- Department of Gynecology and Obstetrics, Institute of Medical Sciences, College of Medical Sciences, University of Rzeszow, 35-310 Rzeszow, Poland
| | - Mohamed Ali
- Department of Obstetrics and Gynecology, University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637, USA; (M.A.); (A.A.-H.)
| | - Ayman Al-Hendy
- Department of Obstetrics and Gynecology, University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637, USA; (M.A.); (A.A.-H.)
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3
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Wan Z, Qin X, Tian Y, Ouyang F, Wang G, Wan Q. Long-Term Consumption of Green Tea Can Reduce the Degree of Depression in Postmenopausal Women by Increasing Estradiol. Nutrients 2023; 15:4514. [PMID: 37960167 PMCID: PMC10650806 DOI: 10.3390/nu15214514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Postmenopausal women face a higher risk of depression due to a combination of social and physiological factors. As a beverage rich in a variety of bioactive substances, green tea has significant effects on metabolism, inflammation and endocrine, and may reduce the risk of depression, but few studies have looked at the effects of green tea on postmenopausal women. Therefore, we designed this study to investigate the effects of long-term green tea consumption on inflammation, endocrine and depression levels in postmenopausal women. We investigated a tea-producing village and eventually included 386 postmenopausal women, both in the tea drinking and control groups. The results showed that there were significant differences in the degree of insomnia, degree of depression, BMI, SII and estradiol between the two groups. And, green tea consumption may reduce the risk of depression through the mediating pathway of sleep, SII and estradiol. In summary, long-term green tea consumption can reduce the risk of depression in postmenopausal women by reducing inflammation and increasing estradiol. This kind of living habit deserves further promotion.
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Affiliation(s)
- Zhenyu Wan
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430000, China; (Z.W.); (X.Q.)
| | - Xucong Qin
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430000, China; (Z.W.); (X.Q.)
| | - Yuling Tian
- Yichang City Clinical Research Center for Mental Disorders, Yichang 443000, China;
| | | | - Gaohua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430000, China; (Z.W.); (X.Q.)
| | - Qirong Wan
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430000, China; (Z.W.); (X.Q.)
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4
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Svoradová A, Baláži A, Chrenek P. Effect of selected natural and synthetic substances on rabbit reproduction-A mini review. J Anim Physiol Anim Nutr (Berl) 2021; 106:622-629. [PMID: 34542913 DOI: 10.1111/jpn.13641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 08/17/2021] [Indexed: 11/30/2022]
Abstract
Numerous natural and synthetic substances have effects on reproduction through several mechanisms. This review aims to summarize the impact of green tea (GT), yucca schidigera (YS) extract, curcuma longa (CL), adenosine 3',5'-cyclic monophosphate (cAMP) and isobutyl-1-methyl-xanthine (IBMX) stimulators on rabbit reproduction performance. To obtain a comprehensive overview of this topic, the keywords "reproduction," "substances," "spermatogenesis," "embryogenesis,"hormonal profil", "green tea", "yucca schidigera" were searched in such databases as WOS and PubMed to obtain relevant information. Spermatozoa profile was positively effected by the GT and YS, however, cAMP inhibitors stimulated spermatozoa motility resulted in positive or negative effects depending on the doses. Similarly, embryogenesis and hormonal profile were positively influenced by the GT, YS, cAMP and IBMX in a proper administration dose. Further research is needed to improve current knowledge about these substances to identify potential effects on the other reproduction parameters. Furthermore, future studies should combine GT, YS and CL with different plant extracts to determine their effects on spermatozoa status, embryogenesis as well as hormonal profile as key outcomes. This review summarizes current knowledge about effect of natural and synthetic substances on rabbit reproduction.
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Affiliation(s)
- Andrea Svoradová
- National Agricultural and Food Centre, Research Institute for Animal Production Nitra, Nitra, Slovakia.,Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Andrej Baláži
- National Agricultural and Food Centre, Research Institute for Animal Production Nitra, Nitra, Slovakia
| | - Peter Chrenek
- National Agricultural and Food Centre, Research Institute for Animal Production Nitra, Nitra, Slovakia.,Faculty of Biotechnology and Food Science, Slovak University of Agriculture in Nitra, Nitra, Slovakia
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Guimarães-Ervilha LO, Ladeira LCM, Carvalho RPR, Bento IPDS, Bastos DSS, Souza ACF, Santos EC, de Oliveira LL, Maldonado IRDSC, Machado-Neves M. Green Tea Infusion Ameliorates Histological Damages in Testis and Epididymis of Diabetic Rats. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2021; 27:1-13. [PMID: 34184626 DOI: 10.1017/s1431927621012071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Green tea is a popular drink used for therapeutic purposes to mitigate the consequences of diabetes. In this study, we aimed at evaluating the potential of green tea infusion to ameliorate structural and enzymatic damages caused by hyperglycemia in the testis and epididymis of Wistar rats. For that, nondiabetic and streptozotocin-induced diabetic rats (negative control and diabetes control, respectively) received 0.6 mL of water by gavage. Another set of diabetic animals received 100 mg/kg of green tea infusion diluted in 0.6 mL of water/gavage (diabetes + green tea) daily. After 42 days of treatment, the testes and epididymides were removed and processed for histopathological analysis, micromineral determination, and enzymatic assays. The results showed that treatment with green tea infusion preserved the testicular and epididymal histoarchitecture, improving the seminiferous epithelium and the sperm production previously affected by diabetes. Treatment with green tea reduced tissue damages caused by this metabolic condition. Given the severity of hyperglycemia, there was no efficacy of the green tea infusion in maintaining the testosterone levels, antioxidant enzyme activity, and microminerals content. Thus, our findings indicate a protective effect of this infusion on histological parameters, with possible use as a complementary therapy for diabetes.
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Affiliation(s)
| | - Luiz Carlos Maia Ladeira
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais36570-900, Brazil
| | | | | | - Daniel Silva Sena Bastos
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais36570-900, Brazil
| | - Ana Cláudia Ferreira Souza
- Department of Animal Biology, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro23897-000, Brazil
| | - Eliziária Cardoso Santos
- Medicine School, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais39100-000, Brazil
| | | | | | - Mariana Machado-Neves
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais36570-900, Brazil
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Mihanfar A, Nouri M, Roshangar L, Khadem-Ansari MH. Polyphenols: Natural compounds with promising potential in treating polycystic ovary syndrome. Reprod Biol 2021; 21:100500. [PMID: 33878526 DOI: 10.1016/j.repbio.2021.100500] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/30/2021] [Accepted: 03/11/2021] [Indexed: 12/12/2022]
Abstract
Polyphenols are natural compounds used by plants as a defense system against various stresses. In recent years, the importance of these polyhydroxyphenols has extensively increased due to their potent cardioprotection, anti-carcinogenic, anti-oxidant, anti-apoptotic, and anti-inflammatory properties. Therefore, various studies have reported promising results from the studies investigating their efficacy as a therapeutic strategy in various disorders such as human malignancies, cardiovascular diseases, nervous system impairments, diabetes, metabolic syndrome, aging, and inflammation-associated disorders, as well as a polycystic ovarian syndrome (PCOS). Since oxidative stress, hormonal, metabolic, and endocrine disturbances have been shown to play a crucial role in the initiation/progression of PCOS, polyphenols are suggested to be an effective treatment for this disorder. Therefore, this study aimed to discuss the therapeutic potential of multiple polyphenols in PCOS.
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Affiliation(s)
- Aynaz Mihanfar
- Department of Clinical Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences Tabriz, Iran; Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Roshangar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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7
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Green tea consumption increases sperm concentration and viability in male rats and is safe for reproductive, liver and kidney health. Sci Rep 2020; 10:15269. [PMID: 32943691 PMCID: PMC7498455 DOI: 10.1038/s41598-020-72319-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 08/26/2020] [Indexed: 12/14/2022] Open
Abstract
Green tea is a popularly consumed beverage worldwide and contains polyphenols, whose antioxidant activities could improve sperm parameters and fertility thereof. We investigated the effect of green tea on the male rat reproductive system as well as its safety. Male Wistar rats were administered 2 and 5% aqueous extract of green tea for 52 days’ ad libitum, while the control group received tap water. Total polyphenol, flavanol, flavonol and soluble solids significantly increased in a concentration-dependent manner in vitro (P < 0.01). Weights of body, testis, epididymis, prostate gland, seminal vesicles, and liver, serum levels of testosterone, ferric reducing antioxidant power, creatinine, and sperm motility, remained unchanged (P > 0.05). Kidney weight, sperm concentration and vitality, spontaneous acrosome reaction increased (P < 0.05), while alanine transaminase and aspartate transaminase levels decreased (P < 0.05). Catalase, superoxide dismutase, glutathione and lipid peroxidation remained unchanged in the testes, liver and kidney (P > 0.05). Histological sections of testis, epididymis, kidney and liver showed no conspicuous alteration. Diameter and epithelial height of seminiferous tubule decreased, while caudal epididymis epithelial height increased (P < 0.01). Consumption of green tea in the conditions used in the present study seems to be safe and improved sperm parameters. However, subtle structural changes observed in the decreased diameter and epithelial height of the seminiferous tubule and increased acrosome reaction needs further investigation.
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8
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Hamza RZ, Al-Salmi FA, Laban H, El-Shenawy NS. Ameliorative Role of Green Tea and Zinc Oxide Nanoparticles Complex Against Monosodium Glutamate-Induced Testicular Toxicity in Male Rats. Curr Pharm Biotechnol 2020; 21:488-501. [PMID: 31793422 DOI: 10.2174/1389201020666191203095036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/29/2019] [Accepted: 11/22/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVE This study was designed to estimate the long-term effects of zinc oxide nanoparticles/green tea (ZnONPs/GTE) complex against monosodium glutamate (MSG). The antioxidant/oxidative status, testosterone levels, DNA damage, and histopathological changes of testis were evaluated. METHODS The rats were divided into eight groups that were treated as follows: saline, the lower dosage of MSG (6.0 mg/kg), the higher dosage of MSG (17.5 mg/Kg), GTE, ZnONPs, ZnONPs/GTE and the last two groups were treated with the lower dosage of MSG or the higher dosage of MSG with ZnONPs/GTE complex. The data showed minimal toxicity in testicular tissue after the administration of ZnONPs. RESULTS The MSG treatment in the adult male rats reduced testosterone levels and disrupted testicular histology, which revealed dose-dependence of MSG. Also, ZnONPs induced testicular dysfunction through the interference of antioxidant/oxidant balance and suppression of testosterone levels as well as induction of cellular damage of testis. The combination of ZnONPs with GTE complex significantly protects against MSG or ZnONPs toxicity by decreasing the DNA damage, oxidative stress, and enhancement of antioxidant as well as histological structure of testis. CONCLUSION We could recommend using ZnONPs/GTE complex to reduce the toxicity of ZnONPs and MSG on the testis at the cellular and oxidative stress levels.
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Affiliation(s)
- Reham Z Hamza
- Biology Department, Faculty of Science, Taif University, Taif, 888, Saudi Arabia.,Zoology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
| | - Fawziah A Al-Salmi
- Biology Department, Faculty of Science, Taif University, Taif, 888, Saudi Arabia
| | - Hebatullah Laban
- Zoology Department, Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt
| | - Nahla S El-Shenawy
- Zoology Department, Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt
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9
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Improvement of Testicular Steroidogenesis Using Flavonoids and Isoflavonoids for Prevention of Late-Onset Male Hypogonadism. Antioxidants (Basel) 2020; 9:antiox9030237. [PMID: 32183155 PMCID: PMC7139932 DOI: 10.3390/antiox9030237] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/09/2020] [Accepted: 03/10/2020] [Indexed: 12/11/2022] Open
Abstract
Androgen production, being important for male fertility, is mainly accomplished by the Leydig cells from the interstitial compartment of the testis. Testosterone plays a critical role in testis development, normal masculinization, and the maintenance of spermatogenesis. Within seminiferous tubules, appropriate Sertoli cell function is highly dependent on testicular androgen levels and is essential to initiate and maintain spermatogenesis. During aging, testosterone production by the testicular Leydig cells declines from the 30s in humans at a rate of 1% per year. This review outlines the recent findings regarding the use of flavonoids and isoflavonoids to improve testosterone production, contributing to normal spermatogenesis and preventing age-related degenerative diseases associated with testosterone deficiency. With the cumulation of information on the actions of different flavonoids and isoflavonoids on steroidogenesis in Leydig cells, we can now draw conclusions regarding the structure-activity relationship on androgen production. Indeed, flavonoids having a 5,7-dihydroxychromen-4-one backbone tend to increase the expression of the steroidogenic acute regulatory protein (StAR), being critical for the entry of cholesterol into the mitochondria, leading to increased testosterone production from testis Leydig cells. Therefore, flavonoids and isoflavonoids such as chrysin, apigenin, luteolin, quercetin, and daidzein may be effective in delaying the initiation of late-onset hypogonadism associated with aging in males.
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Lamas CA, Kido LA, Montico F, Collares-Buzato CB, Maróstica MR, Cagnon VHA. A jaboticaba extract prevents prostatic damage associated with aging and high-fat diet intake. Food Funct 2020; 11:1547-1559. [DOI: 10.1039/c9fo02621e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Jaboticaba extract prevented the prostatic lesion development in aging and/or overweight mice, mainly interfering in cell proliferation, hormonal and angiogenesis pathways.
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Affiliation(s)
- C. A. Lamas
- Department of Structural and Functional Biology
- Institute of Biology
- University of Campinas
- São Paulo
- Brazil
| | - L. A. Kido
- Department of Structural and Functional Biology
- Institute of Biology
- University of Campinas
- São Paulo
- Brazil
| | - F. Montico
- Department of Structural and Functional Biology
- Institute of Biology
- University of Campinas
- São Paulo
- Brazil
| | - C. B. Collares-Buzato
- Department of Biochemistry and Tissue Biology
- Biology Institute
- University of Campinas
- São Paulo
- Brazil
| | - M. R. Maróstica
- Department of Food and Nutrition
- School of Food Engineering
- University of Campinas
- São Paulo
- Brazil
| | - V. H. A. Cagnon
- Department of Structural and Functional Biology
- Institute of Biology
- University of Campinas
- São Paulo
- Brazil
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11
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Alagawany M, Abd El-Hack ME, Saeed M, Naveed M, Arain MA, Arif M, Tiwari R, Khandia R, Khurana SK, Karthik K, Yatoo MI, Munjal A, Bhatt P, Sharun K, Iqbal HMN, Sun C, Dhama K. Nutritional applications and beneficial health applications of green tea and l-theanine in some animal species: A review. J Anim Physiol Anim Nutr (Berl) 2020; 104:245-256. [PMID: 31595607 DOI: 10.1111/jpn.13219] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 08/26/2019] [Accepted: 09/10/2019] [Indexed: 02/05/2023]
Abstract
Green tea (Camellia sinensis) is a popular herbal plant with abundant health benefits, and thus, it has been used as a potent antioxidant for a long time. Based on the available literature, the diversity and the availability of multifunctional compounds in green tea offer its noteworthy potential against many diseases such as liver and heart diseases, inflammatory conditions and different metabolic syndromes. Owing to its bioactive constituents including caffeine, amino acids, l-theanine, polyphenols/flavonoids and carbohydrates among other potent molecules, green tea has many pharmacological and physiological effects. The effects of green tea include anti-oxidative, anti-inflammatory, anti-arthritic, anti-stress, hypolipidaemic, hypocholesterolaemic, skin/collagen protective, hepatoprotective, anti-diabetic, anti-microbial, anti-infective, anti-parasitic, anti-cancerous, inhibition of tumorigenesis and angiogenesis, anti-mutagenic, and memory and bone health-improving activities. Apart from its utilization in humans, green tea has also played a significant role in livestock production such as in dairy, piggery, goatry and poultry industries. Supplementation of animal feeds with green tea and its products is in line with the modern concepts of organic livestock production. Hence, incorporating green tea or green tea by-products into the diet of poultry and other livestock can enhance the value of the products obtained from these animals. Herein, an effort is made to extend the knowledge on the importance and useful applications of green tea and its important constituents in animal production including poultry. This review will be a guideline for researchers and entrepreneurs who want to explore the utilization of feeds supplemented with green tea and green tea by-products for the enhancement of livestock production.
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Affiliation(s)
- Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | | | - Muhammad Saeed
- Department of Animal Nutrition, Cholistan University of Veterinary and Animal Sciences Bahawalpur, Pakistan
| | - Muhammad Naveed
- Faculty of Pharmacy and Alternative Medicine, Islamia University of Bahawalpur, Bahawalpur, Pakistan
- Department of Clinical Pharmacy, School of Basic Medicine, and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China
| | - Muhammad A Arain
- College of Animal Science and Technology, NW A&F University, Yangling, Shaanxi, China
| | - Muhammad Arif
- Department of Animal Sciences, University College of Agriculture, University of Sargodha, Pakistan
| | - Ruchi Tiwari
- Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences, UP Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwavidyalay Evum Go-Anusandhan Sansthan (DUVASU), Mathura, Uttar Pradesh, India
| | - Rekha Khandia
- Department of Genetics, Barkatullah University, Bhopal, India
| | - Sandip K Khurana
- ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Kumaragurubaran Karthik
- Central University Laboratory, Tamil Nadu Veterinary and Animal Sciences University, Chennai, Tamil Nadu, India
| | - Mohd I Yatoo
- Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, Jammu and Kashmir, India
| | - Ashok Munjal
- Department of Genetics, Barkatullah University, Bhopal, India
| | - Prakash Bhatt
- Teaching Veterinary Clinical Complex, College of Veterinary and Animal Sciences, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar (Udham Singh Nagar), Uttarakhand, India
| | - Khan Sharun
- Division of Surgery, ICAR-Indian Veterinary Research Institute, Uttar Pradesh, Izatnagar, Bareilly, India
| | - Hafiz M N Iqbal
- School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Monterrey, NL, Mexico
| | - Chao Sun
- College of Animal Science and Technology, NW A&F University, Yangling, Shaanxi, China
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India
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12
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Eni G, Ibor OR, Andem AB, Oku EE, Chukwuka AV, Adeogun AO, Arukwe A. Biochemical and endocrine-disrupting effects in Clarias gariepinus exposed to the synthetic pyrethroids, cypermethrin and deltamethrin. Comp Biochem Physiol C Toxicol Pharmacol 2019; 225:108584. [PMID: 31394255 DOI: 10.1016/j.cbpc.2019.108584] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 07/30/2019] [Accepted: 08/02/2019] [Indexed: 12/24/2022]
Abstract
In the present study, we investigated plasma biochemical and steroid hormone responses, together with gonado-histopathological alterations in Clarias gariepinus exposed to sublethal concentrations of two synthetic pyrethroids (cypermethrin and deltamethrin). Fish were exposed to environmentally-relevant concentrations of cypermethrin at 0 (ethanol solvent control), 0.07, 0.014, 0.028, 0.056) and deltamethrin at 0.22, 0.44, 0.88 and 1.76 μg/L, for 7, 14, 21 and 28 days. Plasma enzyme (aspartate transaminase: AST, alanine transaminase: ALT and alkaline phosphatase: ALP) and steroid hormones (estradiol-17β: E2, testosterone: T) levels were analyzed. Gonado-histopathological evaluation shows the presence of ovo-testis (intersex), oocytes atresia, cytoplasmic degeneration and clumping of vitellogenic oocytes in females, while male fish displayed enlargement and degeneration of testicular seminiferous tubules after 28 days exposure to cypermethrin and deltamethrin. Plasma biochemical analysis in pesticides exposed fish revealed that AST, ALT and ALP were significantly increased in a concentration-dependent manner. In addition, we observed respective and apparent concentration- and time-dependent increase and decrease of plasma E2 and T levels, compared to control. Interestingly, the significant increase in E2 levels paralleled gonadal ovo-testis (intersex) condition in exposed fish, indicating endocrine disruptive effects of cypermethrin and deltamethrin that favor the estrogenic pathway, in addition to overt negative consequences on reproductive, biochemical and physiological health of the exposed fish.
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Affiliation(s)
- George Eni
- Department of Zoology and Environmental Biology, University of Calabar, Calabar, Nigeria
| | - Oju R Ibor
- Department of Zoology and Environmental Biology, University of Calabar, Calabar, Nigeria; Department of Biology, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, N-7491 Trondheim, Norway
| | - Andem B Andem
- Department of Zoology and Environmental Biology, University of Calabar, Calabar, Nigeria
| | - Ene E Oku
- Department of Zoology and Environmental Biology, University of Calabar, Calabar, Nigeria
| | | | - Aina O Adeogun
- Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | - Augustine Arukwe
- Department of Biology, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, N-7491 Trondheim, Norway.
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Hamza RZ, Al-Salmi FA, El-Shenawy NS. Evaluation of the effects of the green nanoparticles zinc oxide on monosodium glutamate-induced toxicity in the brain of rats. PeerJ 2019; 7:e7460. [PMID: 31579564 PMCID: PMC6768055 DOI: 10.7717/peerj.7460] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/11/2019] [Indexed: 12/24/2022] Open
Abstract
Background Monosodium glutamate (MSG) is used extensively as a food additive in the diets of many countries around the world. Aim of the study Our aim was to determine the effects of green zinc oxide nanoparticles on MSG-induced oxidative damage, neurotransmitter changes, and histopathological alternation in the cerebral cortexes of rats. Methods MSG was administered orally at two doses of 6 and 17.5 mg/kg body weight. The higher dose was associated with a significant decline in the activities of superoxide dismutase, catalase, and glutathione peroxidase, as well as the levels of brain-derived neurotrophic factor (BDNF) and glutathione (GSH) in the cerebral cortex of rats. Results The administration of zinc oxide nanoparticles/green tea extract (ZnO NPs/GTE) to 17.5 mg/kg MSG-treated rats was associated with significant improvements in all parameters previously shown to be altered by MSG. The higher dose of MSG induced significant histopathological variation in brain tissue. Co-treatment of rats with ZnO NPs/GTE and MSG-HD inhibited the reduction of neurotransmitters and acetylcholinesterase by MSG. Conclusions ZnO NPs/GTE have the potential to protect against oxidative stress and neuronal necrosis induced by MSG-HD. ZnO NPs/GTE conferred a greater benefit than the control treatment or ZnO NPs or GTE administered separately.
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Affiliation(s)
- Reham Z Hamza
- Department of Zoology, Faculty of Science, Zagazig University, Zagazig, Egypt.,Department of Biology, Faculty of Science, Taif University, Taif, Saudi Arabia
| | - Fawziah A Al-Salmi
- Department of Biology, Faculty of Science, Taif University, Taif, Saudi Arabia
| | - Nahla S El-Shenawy
- Department of Zoology, Faculty of Science, Suez Canal University, Ismailia, Egypt
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Sirotkin A, Kádasi A, Maruniakova N, Grossmann R, Alwasel S, Harrath A. Influence of green tea constituents on cultured porcine luteinized granulosa cell functions. JOURNAL OF ANIMAL AND FEED SCIENCES 2019. [DOI: 10.22358/jafs/104705/2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Anti-Cancer Effects of Green Tea Polyphenols Against Prostate Cancer. Molecules 2019; 24:molecules24010193. [PMID: 30621039 PMCID: PMC6337309 DOI: 10.3390/molecules24010193] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 01/03/2019] [Accepted: 01/03/2019] [Indexed: 12/17/2022] Open
Abstract
Prostate cancer is the most common cancer among men. Green tea consumption is reported to play an important role in the prevention of carcinogenesis in many types of malignancies, including prostate cancer; however, epidemiological studies show conflicting results regarding these anti-cancer effects. In recent years, in addition to prevention, many investigators have shown the efficacy and safety of green tea polyphenols and combination therapies with green tea extracts and anti-cancer agents in in vivo and in vitro studies. Furthermore, numerous studies have revealed the molecular mechanisms of the anti-cancer effects of green tea extracts. We believe that improved understanding of the detailed pathological roles at the molecular level is important to evaluate the prevention and treatment of prostate cancer. Therefore, in this review, we present current knowledge regarding the anti-cancer effects of green tea extracts in the prevention and treatment of prostate cancer, with a particular focus on the molecular mechanisms of action, such as influencing tumor growth, apoptosis, androgen receptor signaling, cell cycle, and various malignant behaviors. Finally, the future direction for the use of green tea extracts as treatment strategies in patients with prostate cancer is introduced.
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Zhou J, Lei Y, Chen J, Zhou X. Potential ameliorative effects of epigallocatechin‑3‑gallate against testosterone-induced benign prostatic hyperplasia and fibrosis in rats. Int Immunopharmacol 2018; 64:162-169. [PMID: 30179845 DOI: 10.1016/j.intimp.2018.08.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/15/2018] [Accepted: 08/26/2018] [Indexed: 12/15/2022]
Abstract
Green tea is among the most popular beverages in the world and is an important source of phytoestrogens. Epigallocatechin‑3‑gallate (EGCG) is the major polyphenol in green tea. The aim of this study was to investigate the anti-benign prostatic hyperplasia (BPH) activity and underling mechanisms of EGCG in testosterone-induced BPH rats and in BPH-1 cells. Prostatic levels of oxidative stress and inflammation makers, as well as angiogenesis related growth factors were measured. Additionally, the prostatic levels of sex hormonal mediators (androgen receptor (AR), estrogen receptor (ER)-α and ER-β), hypoxia-inducible factor (HIF)-1α, transforming growth factor-β1 (TGF-β1), type I TGF-β receptor (TGF-βRI), Smad3, phosphorylation-Smad3 (p-Smad3), epithelial-mesenchymal transition (EMT) markers (E-cadherin, collagen-I, fibronectin and α-SMA) and microRNA (miR)-133a/b were analyzed by immunohistochemistry assay, western blot and/or quantitative RT-PCR. It was observed that EGCG attenuated the prostatic oxidative stress and inflammatory microenvironment, ameliorated prostatic hyperplasia and collagen deposition, reduced the levels of angiogenesis related growth factors, inhibited the over-expression of AR, ER-α, HIF-1α, TGF-β1, TGF-βRI and p-Smad3, enhanced the expression of ER-β, increased the levels of miR-133a/b, as well as relieved prostatic EMT in rats. Both HIF-1α inhibitor and EGCG decreased the expression of HIF-1α and TGF-β1, as well as attenuated EMT in BPH-1 cells. It indicated that EGCG could attenuate testosterone-induced BPH and fibrosis.
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Affiliation(s)
- Jin Zhou
- Department of Pharmacy, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yongfang Lei
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinglou Chen
- Department of Pharmacy, Wuhan Fourth Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Xiuli Zhou
- Department of Nursing, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Pi M, Kapoor K, Ye R, Smith JC, Baudry J, Quarles LD. GPCR6A Is a Molecular Target for the Natural Products Gallate and EGCG in Green Tea. Mol Nutr Food Res 2018; 62:e1700770. [PMID: 29468843 DOI: 10.1002/mnfr.201700770] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 02/07/2018] [Indexed: 12/15/2022]
Abstract
SCOPE The molecular mechanisms whereby gallates in green tea exert metabolic effects are poorly understood. METHODS AND RESULTS We found that GPRC6A, a multi-ligand-sensing G-protein-coupled receptor that regulates energy metabolism, sex hormone production, and prostate cancer progression, is a target for gallates. Sodium gallate (SG), gallic acid (GA) > ethyl gallate (EG) > octyl gallate (OG) dose dependently activated ERK in HEK-293 cells transfected with GPRC6A but not in non-transfected controls. SG also stimulated insulin secretion in β-cells isolated from wild-type mice similar to the endogenous GPRC6A ligands, osteocalcin (Ocn) and testosterone (T). Side-chain additions to create OG resulted in loss of GPRC6A agonist activity. Another component of green tea, epigallocatechin 3-gallate (EGCG), dose-dependently inhibited Ocn activation of GPRC6A in HEK-293 cells transfected with GPRC6A and blocked the effect of Ocn in stimulating glucose production in CH10T1/2 cells. Using structural models of the venus fly trap (VFT) and 7-transmembrane (7-TM) domains of GPRC6A, calculations suggest that l-amino acids and GA bind to the VFT, whereas EGCG is calculated to bind to sites in both the VFT and 7-TM. CONCLUSION GA and EGCG have offsetting agonist and antagonist effects on GPRC6A that may account for the variable metabolic effect of green tea consumption.
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Affiliation(s)
- Min Pi
- Department of Medicine, University of Tennessee Health Science Center, 19 S Manassas St., Memphis, TN, 38163, USA
| | - Karan Kapoor
- UT/ORNL Center for Molecular Biophysics, Oak Ridge, TN, 37830, USA
| | - Ruisong Ye
- Department of Medicine, University of Tennessee Health Science Center, 19 S Manassas St., Memphis, TN, 38163, USA
| | - Jeremy C Smith
- UT/ORNL Center for Molecular Biophysics, Oak Ridge, TN, 37830, USA.,Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, 37996, USA
| | - Jerome Baudry
- UT/ORNL Center for Molecular Biophysics, Oak Ridge, TN, 37830, USA.,Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, 37996, USA
| | - Leigh D Quarles
- Department of Medicine, University of Tennessee Health Science Center, 19 S Manassas St., Memphis, TN, 38163, USA
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Empl MT, Cai H, Wang S, Junginger J, Kostka T, Hewicker-Trautwein M, Brown K, Gescher AJ, Steinberg P. Effects of a Grapevine Shoot Extract Containing Resveratrol and Resveratrol Oligomers on Intestinal Adenoma Development in Mice: In Vitro and In Vivo Studies. Mol Nutr Food Res 2018; 62. [PMID: 29125219 DOI: 10.1002/mnfr.201700450] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 10/10/2017] [Indexed: 11/06/2022]
Abstract
SCOPE Evidence suggests that the dietary consumption of plant extracts containing polyphenols might help prevent the onset of cancers of the gastrointestinal tract. In the present study, the chemopreventive and antiproliferative efficacy of a grapevine shoot extract (Vineatrol®30) containing resveratrol and resveratrol oligomers is investigated in vivo and in vitro. METHODS AND RESULTS The in vivo study is performed using ApcMin mice on a high-fat diet, which represents a model of human adenomatous polyposis, while the potential of the extract as well as some of its isolated constituents to inhibit intestinal adenoma cell proliferation in vitro is investigated using APC10.1 cells derived from an ApcMin mouse. Vineatrol®30 at a low (2.3 mg kg-1 diet) or high dose (476 mg kg-1 diet) reduces the adenoma number in male and adenoma volume in female animals. Furthermore, Vineatrol®30 as well as resveratrol and two resveratrol tetramers compromise the expansion of APC10.1 cells by reducing cell number, inducing cell cycle arrest, cellular senescence, and apoptosis. However, except for the extract, none of the isolated resveratrol oligomers is more efficacious than resveratrol in these cells. CONCLUSION Vineatrol®30 may merit further investigation as a potential dietary gastrointestinal cancer chemopreventive agent in humans.
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Affiliation(s)
- Michael T Empl
- Institute for Food Toxicology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Hong Cai
- Department of Cancer Studies, Leicester Royal Infirmary, University of Leicester, Leicester, United Kingdom
| | - Shan Wang
- Institute for Food Toxicology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Johannes Junginger
- Department of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Tina Kostka
- Institute for Food Toxicology, University of Veterinary Medicine Hannover, Hannover, Germany
| | | | - Karen Brown
- Department of Cancer Studies, Leicester Royal Infirmary, University of Leicester, Leicester, United Kingdom
| | - Andreas J Gescher
- Department of Cancer Studies, Leicester Royal Infirmary, University of Leicester, Leicester, United Kingdom
| | - Pablo Steinberg
- Institute for Food Toxicology, University of Veterinary Medicine Hannover, Hannover, Germany
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Tehrani HG, Allahdadian M, Zarre F, Ranjbar H, Allahdadian F. Effect of green tea on metabolic and hormonal aspect of polycystic ovarian syndrome in overweight and obese women suffering from polycystic ovarian syndrome: A clinical trial. JOURNAL OF EDUCATION AND HEALTH PROMOTION 2017; 6:36. [PMID: 28584836 PMCID: PMC5441188 DOI: 10.4103/jehp.jehp_67_15] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
BACKGROUND AND OBJECTIVE Polycystic ovarian syndrome (PCOS) is the common cause of Oligo-ovulation. This syndrome causes long-term metabolic issues as well as increase the risk of diabetes type 2, hypertension, dyslipidemia, and cardiovascular disease. The current research aimed to study the effect of green tea on weight and hormonal changes of women suffering from PCOS. METHODS This two group, double-blind, randomized clinical trial was conducted in Isfahan city. Overweight women suffering from PCOS (n = 60) were randomly divided into two groups. Green tea was prescribed to the experimental group, and placebo was prescribed to the control group. Free testosterone hormones and fasting insulin were compared in both groups at the beginning and 12 weeks after the study commencement. The weight of participants of both groups was also measured before and after the study. The statistical data were analyzed by SPSS software and paired t-test. RESULTS The paired t-test showed that there was no significant difference in the mean weight of both groups before the intervention (P = 0.812), but the difference was significant after the intervention (P = 0.031). There was no significant difference in the mean fasting insulin of both groups before the intervention (P = 0.352), but the difference was significant after the intervention (P < 0.0001). Moreover, there was no significant difference in the mean free testosterone level of both groups before the intervention (P = 0.638), but the difference was significant after the intervention (P < 0.0001). CONCLUSION The consumption of green tea by overweight and obese women suffering from PCOS leads to weight loss, a decrease in fasting insulin, and a decrease in the level of free testosterone.
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Affiliation(s)
- Hatav Gasemi Tehrani
- Department of Obstetric and Gynecology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Allahdadian
- Department of Midwifery, Islamic Azad University Falavarjan Branch, Isfahan, Iran
| | - Farzane Zarre
- Department of Midwifery, School of Nursing and Midwifery Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hanie Ranjbar
- Department of Midwifery, School of Nursing and Midwifery Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fateme Allahdadian
- Department of Midwifery, School of Nursing and Midwifery Isfahan University of Medical Sciences, Isfahan, Iran
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Influences of flavones on cell viability and cAMP-dependent steroidogenic gene regulation in MA-10 Leydig cells. Cell Biol Toxicol 2017; 34:23-38. [DOI: 10.1007/s10565-017-9395-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 04/20/2017] [Indexed: 12/11/2022]
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21
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Muñoz V, Kappes T, Roeckel M, Vera JC, Fernández K. Modification of chitosan to deliver grapes proanthocyanidins: Physicochemical and biological evaluation. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.07.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Das SK, Karmakar SN. Effect of green tea (camellia sinensis l.) leaf extract on reproductive system of adult male albino rats. INTERNATIONAL JOURNAL OF PHYSIOLOGY, PATHOPHYSIOLOGY AND PHARMACOLOGY 2015; 7:178-184. [PMID: 27073594 PMCID: PMC4788727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 11/30/2015] [Indexed: 06/05/2023]
Abstract
Green tea leaf extract (GTLE), used in this experiment has shown great influence on male reproductive system functionally as well as morphologically. The extract was prepared according to the method of Wei. H. et al. The extract was given to two different experimental animal groups with two different doses during 26 consecutive days. After treatment it was found that, the weight of the testis was markedly reduced instead of normal weight gain of all the animals. The sperm count and motility were reduced for the treated groups as compared with control animal group. The enzymes like SGPT and SGOT were as usual and other blood parameters like glucose and protein were also as usual comparing with controlled group. Testosterone level was reduced in the treated groups. FSH and LH levels were also altered accordingly in treated groups. Histological examination showed inhibition of spermatogenesis as evidenced by disintegration of seminiferous tubules of testis. Result of this study showed that GTLE has potent castrative effect on male reproductive system in dose dependent manner.
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Affiliation(s)
- Shyamal Kanti Das
- Department of Physiology, Krishnath College Berhampore, Murshidabad, West Bengal, India
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Ding J, Wang H, Wu ZB, Zhao J, Zhang S, Li W. Protection of murine spermatogenesis against ionizing radiation-induced testicular injury by a green tea polyphenol. Biol Reprod 2014; 92:6. [PMID: 25395675 DOI: 10.1095/biolreprod.114.122333] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Epigallocatechin-3-gallate (EGCG), a bioactive polyphenol in green tea, exerts antiapoptotic activity and prevents tissue damage against different stimuli. Herein, we investigated the effects of EGCG treatment to simultaneously improve spermatogenesis following ionizing radiation (IR) (at a dose of 2 Gy). Mice were intraperitoneally injected with 50 mg/kg EGCG or vehicle control 3 days prior to the irradiation, and the treatment lasted intermittently for 24 days. Supplement with exogenous EGCG protected against short-term germ cell loss and attenuated IR-elicited testicular oxidative stress. Mechanistically, prosurvival effects of EGCG treatment upon IR stress were regulated, at least in part, via the mitogen-activated protein kinase/BCL2 family/caspase 3 pathway. Consistently, at post-IR Day 21, histological analyses revealed tubule damage, desquamation of germ cells, and impairment of caudal parameters in irradiated testis, which could be significantly improved by intermittent EGCG treatment. In addition, long-term EGCG application ameliorated the IR-induced blood-testicular barrier permeability and suppressed testicular steroidogenesis, thus exerting a stimulatory effect on the spermatogenic recovery. Collectively, EGCG appeared to efficiently prevent germ cells from radiation-induced cell death via multiple mechanisms. Employment of this bioactive polyphenol should be an attractive strategy to preserve fertility in males exposed to conventional radiation therapy and warrants further investigation.
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Affiliation(s)
- Jin Ding
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China Department of Human Anatomy, Histology and Embryology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Hui Wang
- School of Preclinical Medicine, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Zhen-Biao Wu
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Jie Zhao
- Department of Human Anatomy, Histology and Embryology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Shun Zhang
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Wei Li
- Department of Human Anatomy, Histology and Embryology, Fourth Military Medical University, Xi'an, People's Republic of China
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Opuwari CS, Monsees TK. Reduced testosterone production in TM3 Leydig cells treated withAspalathus linearis(Rooibos) orCamellia sinensis(tea). Andrologia 2014; 47:52-8. [DOI: 10.1111/and.12221] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2013] [Indexed: 11/26/2022] Open
Affiliation(s)
- C. S. Opuwari
- Department of Medical Biosciences; University of the Western Cape; Bellville South Africa
| | - T. K. Monsees
- Department of Medical Biosciences; University of the Western Cape; Bellville South Africa
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Chen XJ, Pang D, Li LP, Chen YQ, Tan XR. A hypothesis on the relationship between tea drinking and sexual activity. World J Hypertens 2013; 3:32-36. [DOI: 10.5494/wjh.v3.i4.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Revised: 07/22/2013] [Accepted: 09/17/2013] [Indexed: 02/06/2023] Open
Abstract
As a major beverage in the world, the health benefits of drinking tea have been reported in numerous studies. The effects of green tea are mainly attributed to its polyphenol content, although caffeine, accounting for 2%-4%, appears to be related to the adaptation of mental energy by increasing alertness, attention and cognitive function, as well as elevating mood. L-Theanine, a unique amino acid in tea, has neuroprotective and mood effects. In addition, some studies on functional neuroanatomy and cerebral control of sexual function have demonstrated that the thalamus and hypothalamus play a role in emotional changes, memory and sexual behavior patterns. Our recent epidemiology research has unexpectedly found that tea drinking was positively related with sexual orgasm and sexual satisfaction in female hypertensive patients. We therefore hypothesize that long-term regular consumption of tea may play a role in sexual activity.
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Srednicka-Tober D, Barański M, Gromadzka-Ostrowska J, Skwarło-Sońta K, Rembiałkowska E, Hajslova J, Schulzova V, Cakmak I, Öztürk L, Królikowski T, Wiśniewska K, Hallmann E, Baca E, Eyre M, Steinshamn H, Jordon T, Leifert C. Effect of crop protection and fertilization regimes used in organic and conventional production systems on feed composition and physiological parameters in rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:1017-1029. [PMID: 23323826 DOI: 10.1021/jf303978n] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Very little is known about the effects of an organic or conventional diet on animal physiology and health. Here, we report the effect of contrasting crop protection (with or without chemosynthetic pesticides) and fertilization (manure or mineral fertilizers) regimes on feed composition and growth and the physiological parameters of rats. The use of manure instead of mineral fertilizers in feed production resulted in lower concentrations of protein (18.8 vs 20.6%) and cadmium (3.33 vs 4.92 μg/100 g) but higher concentrations of polyphenols (1.46 vs 0.89 g/100 g) in feeds and higher body protein (22.0 vs 21.5%), body ash (3.59 vs 3.51%), white blood cell count (10.86 vs 8.19 × 10³/mm³), plasma glucose (7.23 vs 6.22 mmol/L), leptin (3.56 vs 2.78 ng/mL), insulin-like growth factor 1 (1.87 vs 1.28 μg/mL), corticosterone (247 vs 209 ng/mL), and spontaneous lymphocyte proliferation (11.14 vs 5.03 × 10³ cpm) but lower plasma testosterone (1.07 vs 1.97 ng/mL) and mitogen stimulated proliferation of lymphocytes (182 vs 278 × 10³ cpm) in rats. There were no main effects of crop protection, but a range of significant interactions between fertilization and crop protection occurred.
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Affiliation(s)
- Dominika Srednicka-Tober
- Department of Functional & Organic Food & Commodities, Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences, Nowoursynowska 159c, 02-776 Warsaw, Poland.
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De Amicis F, Santoro M, Guido C, Russo A, Aquila S. Epigallocatechin gallate affects survival and metabolism of human sperm. Mol Nutr Food Res 2012; 56:1655-64. [DOI: 10.1002/mnfr.201200190] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 08/01/2012] [Accepted: 08/13/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Francesca De Amicis
- Centro Sanitario; University of Calabria, Arcavacata di Rende (CS); Italy
- Department of Pharmaco-Biology; University of Calabria; Arcavacata di Rende (CS); Italy
| | - Marta Santoro
- Centro Sanitario; University of Calabria, Arcavacata di Rende (CS); Italy
- Post-graduate School in Clinical Pathology; University of Calabria, Arcavacata di Rende (CS); Italy
| | - Carmela Guido
- Centro Sanitario; University of Calabria, Arcavacata di Rende (CS); Italy
| | - Alessandra Russo
- Centro Sanitario; University of Calabria, Arcavacata di Rende (CS); Italy
| | - Saveria Aquila
- Centro Sanitario; University of Calabria, Arcavacata di Rende (CS); Italy
- Department of Pharmaco-Biology; University of Calabria; Arcavacata di Rende (CS); Italy
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Raja-Khan N, Stener-Victorin E, Wu X, Legro RS. The physiological basis of complementary and alternative medicines for polycystic ovary syndrome. Am J Physiol Endocrinol Metab 2011; 301:E1-E10. [PMID: 21487075 PMCID: PMC4459923 DOI: 10.1152/ajpendo.00667.2010] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Accepted: 04/07/2011] [Indexed: 01/10/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a common endocrine disorder that is characterized by chronic hyperandrogenic anovulation leading to symptoms of hirsutism, acne, irregular menses, and infertility. Multiple metabolic and cardiovascular risk factors are associated with PCOS, including insulin resistance, obesity, type 2 diabetes, hypertension, inflammation, and subclinical atherosclerosis. However, current treatments for PCOS are only moderately effective at controlling symptoms and preventing complications. This article describes how the physiological effects of major complementary and alternative medicine (CAM) treatments could reduce the severity of PCOS and its complications. Acupuncture reduces hyperandrogenism and improves menstrual frequency in PCOS. Acupuncture's clinical effects are mediated via activation of somatic afferent nerves innervating the skin and muscle, which, via modulation of the activity in the somatic and autonomic nervous system, may modulate endocrine and metabolic functions in PCOS. Chinese herbal medicines and dietary supplements may also exert beneficial physiological effects in PCOS, but there is minimal evidence that these CAM treatments are safe and effective. Mindfulness has not been investigated in PCOS, but it has been shown to reduce psychological distress and exert positive effects on the central and autonomic nervous systems, hypothalamic-pituitary-adrenal axis, and immune system, leading to reductions in blood pressure, glucose, and inflammation. In conclusion, CAM treatments may have beneficial endocrine, cardiometabolic, and reproductive effects in PCOS. However, most studies of CAM treatments for PCOS are small, nonrandomized, or uncontrolled. Future well-designed studies are needed to further evaluate the safety, effectiveness, and mechanisms of CAM treatments for PCOS.
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Affiliation(s)
- Nazia Raja-Khan
- Division of Endocrinology, Diabetes, and Metabolism, Pennsylvania State University College of Medicine, MS Hershey Medical Center, Hershey, Pennsylvania 17033, USA.
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Henning SM, Wang P, Heber D. Chemopreventive effects of tea in prostate cancer: green tea versus black tea. Mol Nutr Food Res 2011; 55:905-20. [PMID: 21538852 DOI: 10.1002/mnfr.201000648] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 01/27/2011] [Accepted: 03/01/2011] [Indexed: 02/06/2023]
Abstract
The polyphenol compositions of green tea (GT) and black tea (BT) are very different due to post-harvest processing. GT contains higher concentrations of monomeric polyphenols, which affect numerous intracellular signaling pathways involved in prostate cancer (CaP) development. BT polymers, on the other hand, are poorly absorbed and are converted to phenolic acids by the colonic microflora. Therefore, after consumption of GT, higher concentrations of polyphenols are found in the circulation, whereas after BT consumption the phenolic acid levels in the circulation are higher. The majority of in vitro cell culture, in vivo animal, and clinical intervention studies examine the effects of extracts of GT or purified (-)-epigallocatechin-3-gallate (EGCG) on prostate carcinogenesis. These studies provide strong evidence supporting a chemopreventive effect of GT, but results from epidemiological studies of GT consumption are mixed. While the evidence for a chemopreventive effect of BT is much weaker than the body of evidence with regard to GT, there are several animal BT intervention studies demonstrating inhibition of CaP growth. This article will review in detail the available epidemiological and human clinical studies, as well as animal and basic mechanistic studies on GT and BT supporting a chemopreventive role in CaP.
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Affiliation(s)
- Susanne M Henning
- Center for Human Nutrition, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.
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Yu PL, Pu HF, Chen SY, Wang SW, Wang PS. Effects of catechin, epicatechin and epigallocatechin gallate on testosterone production in rat leydig cells. J Cell Biochem 2010; 110:333-42. [PMID: 20432242 DOI: 10.1002/jcb.22541] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Catechins have been reported to have many pharmacological properties such as the effects of anti-oxidative, anti-inflammatory, anti-carcinogenic, anti-ultraviolet, and reduction of blood pressure as well as glucose and cholesterol levels. However, the effect of catechins on the reproductive mechanism is still unknown. In the present study, the effects of catechins on testosterone secretion in rat testicular Leydig cells (LCs) were explored. Both in vivo and in vitro investigations were performed. Purified LCs were incubated with or without catechin (CCN), epicatechin (EC), epigallocatechin gallate (EGCG, 10(-10)-10(-8) M) under challenge with human chorionic gonadotropin (hCG, 0.01 IU/ml), forskolin, SQ22536 (an adenylyl cyclase inhibitor), 8-bromo-adenosine 3':5'-cyclic monophosphate (8-Br-cAMP), A23187 (a calcium ionophore), and nifedipine (10(-5) M), respectively. To study the effects of catechins on steroidogenesis, steroidogenic precursors-stimulated testosterone release was examined. The functions of the steroidogenic enzymes including protein expression of cytochrome P450 side chain cleavage enzyme (P450scc) and steroidogenic acute regulatory (StAR) protein were investigated and expressed by Western blotting. Catechins increased plasma testosterone in vivo in male rats. In vitro, low-dose concentration of catechins increased gonadotropin releasing hormone (GnRH)-stimulated luteinizing hormone (LH) release by anterior pituitary gland and hCG-stimulated testosterone release by LCs of male rats. These results suggested that catechins stimulated testosterone production by acting on rat LCs via the mechanism of increasing the action of cAMP, but not P450scc, StAR protein or the activity of intracellular calcium. EC, one of the catechins increased the testosterone secretion by rat LCs via the enzyme activities of 17beta-hydroxysteroid dehydrogenase (17beta-HSD).
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Affiliation(s)
- Po-Ling Yu
- Department of Surgery, Taipei City Hospital, Taipei, Taiwan, Republic of China
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