The Biological Potentialsof Indian Traditional Medicine, Curcumin for Treating Human Diseases

Curcumin as a potential therapeutic agent for treating neurodegenerative diseases

Neurodegenerative diseases are characterized by the progressive loss of neuronal structure and function, posing a tremendous burden on health systems worldwide. Although the underlying pathological mechanisms for various neurodegenerative diseases are still unclear, a common pathological hallmark is the abundance of neuroinflammatory processes, which affect both disease onset and progression. In this review, we explore the pathways and role of neuroinflammation in various neurodegenerative diseases and further assess the potential use of curcumin, a natural spice with antioxidant and anti-inflammatory properties that has been extensively used worldwide as a traditional medicine and potential therapeutic agent. Following the examination of preclinical and clinical studies that assessed curcumin as a potential therapeutic agent, we highlight the bioavailability of curcumin in the body and discuss both the challenges and benefits of using curcumin as a therapeutic compound for treating neurodegeneration. Although elucidating the involvement of curcumin in aging and neurodegeneration has great potential for developing future CNS-related therapeutic targets, further research is required to elucidate the mechanisms by which Curcumin affects brain physiology, especially BBB integrity, under both physiological and disease conditions.

Curcuminoids as Anticancer Drugs: Pleiotropic Effects, Potential for Metabolic Reprogramming and Prospects for the Future

The number of published studies on curcuminoids in cancer research, including its lead molecule curcumin and synthetic analogs, has been increasing substantially during the past two decades. Insights on the diversity of inhibitory effects they have produced on a multitude of pathways involved in carcinogenesis and tumor progression have been provided. As this wealth of data was obtained in settings of various experimental and clinical data, this review first aimed at presenting a chronology of discoveries and an update on their complex in vivo effects. Secondly, there are many interesting questions linked to their pleiotropic effects. One of them, a growing research topic, relates to their ability to modulate metabolic reprogramming. This review will also cover the use of curcuminoids as chemosensitizing molecules that can be combined with several anticancer drugs to reverse the phenomenon of multidrug resistance. Finally, current investigations in these three complementary research fields raise several important questions that will be put among the prospects for the future research related to the importance of these molecules in cancer research.

Efficacy of herbal anti-microbial soap in Tinea corporis: A randomized controlled study

ETHNOPHARMACOLOGICAL RELEVANCE

Curcuma longa L., Azadirachta indica A Juss. Cassia tora L. has been used in Unani medicine for various skin ailments. Several researches have been conducted on these plants which have shown anti-microbial, anti-bacterial, anti-fungal, antiviral, anti-oxidant, wound healing, anti-inflammatory, and immune modulation activities. Skin diseases and the use of these drugs are mentioned in classical Unani literature like The Canon of medicine, Continens Liber, Hippocratic treatments, The Complete Book of the Medical Art etc. AIM: The aim of the study was to formulate anti-microbial soap and to evaluate its clinical efficacy of in the management of Tinea corporis.

MATERIALS AND METHODS

The anti-microbial soap was prepared by hydroalcholic extracts of Curcuma longa L., Azadirachta indica A Juss. and Cassia tora L. The prepared soap was evaluated for various physicochemical parameters, microbiological evaluation, stability study, skin irritation, In-vitro anti-microbial activity, GCMS analysis, and a clinical trial was carried out to evaluate its efficacy. A Single Blind Randomized Placebo Controlled trail on 30 patients aged between 18 and 60 years of either gender was carried out. The participants were randomly allocated to receive either anti-microbial soap or Placebo soap for 4 weeks. Subjective parameters including erythema, pruritis and desquamation were assessed weekly while as objective parameter including Photograph of lesion, Total Symptom Score (TSS) and KOH mount was assessed at baseline and at the end of the trial.

RESULTS

The improvement in subjective parameters was found significant in test group. Erythema, scaling, and desquamation was completely relieved by 70%, 80% and 25% patients respectively in test group while as none of the patients got complete relief in control group. There was statistically significant reduction in average TSS 8.65 ± 0.6708 to 3.05 ± 1.35 p < 0.001. KOH mount turned negative in 80% patients in test group while as only 20% turned negative in control group.

CONCLUSION

It is concluded that Unani drugs can be utilized in better way by modifying into a convenient dosage form. Anti-microbial soap was formulated by adding minimal additives to achieve effectiveness, with cost effective benefits and less or no side effects. Anti-microbial soap was effective in management of management of Tinea corporis. Moreover further studies on large sample size are required to fine-tune these observations.

Curcumin as an Enhancer of Therapeutic Efficiency of Chemotherapy Drugs in Breast Cancer

Female breast cancer is the world’s most prevalent cancer in 2020. Chemotherapy still remains a backbone in breast cancer therapy and is crucial in advanced and metastatic breast cancer treatment. The clinical efficiency of chemotherapy regimens is limited due to tumor heterogeneity, chemoresistance, and side effects. Chemotherapeutic drug combinations with natural products hold great promise for enhancing their anticancer efficacy. Curcumin is an ideal chemopreventive and chemotherapy agent owning to its multitargeting function on various regulatory molecules, key signaling pathways, and pharmacological safety. This review aimed to elucidate the potential role of curcumin in enhancing the efficacy of doxorubicin, paclitaxel, 5-fluorouracil, and cisplatin via combinational therapy. Additionally, the molecular mechanisms underlying the chemosensitizing activity of these combinations have been addressed. Overall, based on the promising therapeutic potential of curcumin in combination with conventional chemotherapy drugs, curcumin is of considerable value to develop as an adjunct for combination chemotherapy with current drugs to treat breast cancer. Furthermore, this topic may provide the frameworks for the future research direction of curcumin–chemotherapy combination studies and may benefit in the development of a novel therapeutic strategy to maximize the clinical efficacy of anticancer drugs while minimizing their side effects in the future breast cancer treatment.

Exploring the potential of curry leaves on mercury-induced hepatorenal toxicity in an animal model

Herbal drugs play an imperative role in healthcare programs in developing countries. Curry leaves have wide medicinal importance and are used to treat various diseases traditionally. The current study was carried out to estimate the extent of mercury toxicity and the potential effect of curry leaves against defined toxicity. The study group comprised 24 rats weighing between 130 and150 g. Group 1 was kept normal, and group 2 was exposed to mercury at 0.4 mg/kg of body weight in the form of mercuric chloride (HgCl2). The group 3 animals were treated with curry leaves with a dosage of 300 mg/kg of body weight. Group 4 was treated with curry leaves along with mercury with a dosage of 300 and 0.4 mg/kg consecutively. After 28 days, the rats were killed. Blood sample of all groups were evaluated separately to determine the results of different parameters. The results show that ALP, AST, ALT, urea, bilirubin, and creatinine increased with mercury application and decreased with curry leaf exposure. SOD, CAT, GPx, and GR of the liver as well as the kidney depleted on mercury exposure whereas they increased with curry leaf application. HDL increased with curry leaf application and decreased with mercury treatment, while LDL, triglyceride, and cholesterol decreased with curry leaves and increased with mercury exposure. Organ index in mercury along with curry leaf application got close to normal.

3,5-Bis((E)-4-methoxybenzylidene)-1-(2-morpholinoethyl)piperidin-4-one

The 3,5-bis((E)-4-methoxybenzylidene)-1-(2-morpholinoethyl)piperidin-4-one (3) compound was synthesized by a two-step reaction with 92% yield. The chemical structure of compound 3 was confirmed by IR, NMR, and mass spectrometry. The title compound was screened for its anti-dengue activity against DENV2 NS2B-NS3 protease and showed 39.09% inhibitory activity at 200 µg/mL.

Chemoprotective effect of nanocurcumin on 5-fluorouracil-induced-toxicity toward oral cancer treatment

Introduction

Cancer of oral cavity is the uncontrolled expansion of damaged cell within the mouth cavity. 5-fluorouracil (5-FU) chemotherapy was focused to kill the cancer cell, but it would affect the surrounding normal cells during oral cancer treatment. This study included the evaluation of chemoprotective effects of curcumin (CU), as an herbal remedy, on 5-FU-induced-cytotoxicity toward oral cancer treatment, loaded within a nanocarrier system. CU was combined with 5-FU chemotherapy as a combinational drug-delivery system to evaluate synergistic effects.

Materials and Methods

Nanoformulation of CU (nano-CU) and nanoformulation of 5-FU (nano-FU) were prepared by employing homogenization with high-energy sonication. The characterizations of prepared nanoformulations were evaluated on the basis of particle size, zeta potential, and polydispersity index (PDI) values. The chemopreventive effect of nano-CU on 5-FU induced-toxicity and synergistic efficacy were optimized through different in-vitro assays.

Results

The average particle size of nano-CU and nano-FU were up to 200 nm, negatively-charged, and shown up to 4^th-day control release of the drug within the acceptable concentration. IC₅₀ value for growth inhibition was calculated as 47.89 and 26.19 μg/ml, respectively, for nano-CU and nano-FU. OCC was pretreated with nano-CU and shown the protective effect by reducing 5-FU induced-cytotoxicity by preventing normal cells through reduced viability. The DPPH-indicated fluorescence-tagged cells had quantified for antioxidant effect as it reduces intracellular reactive oxygen species level in OCC. Along with alteration in cell protein expression, Blc2, and Bax, shows enhanced apoptosis rate in OCC.

Conclusion

Nano-CU provides chemoprotective nature towards 5-FU induced-toxicity, along with synergistic effects in oral cancer treatment.