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Ramzan A, Memon GF, Shaikh AA, Khoso MM, Meher T, Ghafoor A, Shehzad NA, Ahmed S, Nawaz Z, Rehan M, Saeed T, Taj W, Abbass S, Khan R, Ehsan H, Alam A, Manzoor B, Khan MN, Yahya KM, Mukhtiar F, Javed MA, Sheikh MU, Janjua D, Jabeen S, Zafar J, Khokhar RH, Nazar M, Maheshwary N, Khan MA. Efficacy and safety of itopride SR for upper gastrointestinal symptoms in patients with diabetic gastroparesis: real-world evidence from Pakistan. Drugs Context 2023; 12:2023-6-4. [PMID: 38148829 PMCID: PMC10751102 DOI: 10.7573/dic.2023-6-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/04/2023] [Indexed: 12/28/2023] Open
Abstract
Background Gastroparesis is a serious condition that can be caused by diabetes, surgery or infection, or can be idiopathic. When there is no mechanical obstruction, gastroparesis is characterized by delayed stomach emptying. Itopride, a prokinetic drug, inhibits acetylcholinesterase activity in addition to antagonizing dopamine D2 receptors. Methods This prospective, multicentre study is based on real-world data from 988 patients with a diagnosis of diabetic gastroparesis for index (PAGI-SYM2) evaluation at baseline and week 4 of treatment for upper gastrointestinal disorder symptoms. Results Upper gastrointestinal symptom severity scores improved significantly after 4 weeks of treatment (p<0.001), with significant improvement across all categories of gastroparesis (very mild (37-58.6%), mild degree (24.6-31.6%), moderate (29.3-7.3%) and severe (8.8-2.6%). Conclusion Itopride SR (Nogerd SR) in a 150 mg once-daily dose showed promising results in reducing the severity of upper gastrointestinal disorder symptoms associated with diabetic gastroparesis. Both statistical and clinical effectiveness were observed. Moreover, the treatment demonstrated a favourable tolerability profile, with a low incidence of adverse effects.
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Affiliation(s)
- Adil Ramzan
- Department of Medicine, Karachi Medical and Dental College/Abbasi Hospital, Karachi,
Pakistan
| | | | | | | | - Tariq Meher
- Hayatabad Medical Complex, Peshawar,
Pakistan
| | | | | | | | | | - Muhammad Rehan
- Civil Hospital, Karachi,
Pakistan
- Kutiyana Memon Hospital, Karachi,
Pakistan
| | - Tariq Saeed
- Hamdard University Hospital, Karachi,
Pakistan
| | - Waqar Taj
- Baloch Medical Center, Turbat,
Pakistan
| | | | - Ramiz Khan
- Qazi Hussain Ahmed Medical Complex MTI, Nowshera,
Pakistan
| | | | | | - Bilal Manzoor
- Dr. Abdul Majeed Memorial Clinic, Peshawar,
Pakistan
| | | | | | - Farhan Mukhtiar
- Diabetes/Endocrinology Unit, DHQ Hospital, Charsadda,
Pakistan
| | - Muhammad Asif Javed
- Social Security MNCH Hospital, Faislabad,
Pakistan
- Health Care Clinic, Shahkot,
Pakistan
| | | | - Danish Janjua
- Sakhi Shahbaz Clinic for Diabetic Foot, Sahiwal,
Pakistan
| | | | - Junaid Zafar
- Jinnah Medical Complex, Dera Ghazi Khan,
Pakistan
| | - Riaz Hussain Khokhar
- People’s University of Medical and Health Sciences for Women, Nawabshah,
Pakistan
| | | | | | - Muhammad Athar Khan
- Department of Community Medicine, Liaquat College of Medicine & Dentistry, Karachi,
Pakistan
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Ansari SA, Lopa NS, Parveen N, Shaikh AA, Rahman MM. A highly sensitive poly(chrysoidine G)-gold nanoparticle composite based nitrite sensor for food safety applications. Anal Methods 2020; 12:5562-5571. [PMID: 33226391 DOI: 10.1039/d0ay01761b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This work demonstrated the development of conducting poly(chrysoidine G) (PCG)-gold nanoparticle (AuNP)-modified fluorine-doped tin oxide (F : SnO2, FTO) film-coated glass electrodes for the sensitive electrochemical detection of nitrite (NO2-). The homogeneously distributed PCG nanoparticle layer was deposited onto the FTO electrode by cyclic voltammetry sweeping. AuNPs were then anchored onto the PCG/FTO electrode by the chemical reduction of pre-adsorbed Au3+ ions. The as-prepared AuNP/PCG/FTO electrode exhibited excellent electrocatalytic activity for the oxidation of NO2- with high sensitivity (approximately 0.63 μA cm-2μM-1) and a low limit of detection (0.095 μM), which is relevant within the normal concentration range of NO2- in human bodily fluids. The AuNP/PCG/FTO sensor showed sufficient reproducibility, repeatability, low interference, and strong recovery for NO2- detection in food samples. These results indicate that the AuNP/PCG nanocomposites have immense potential for the electrochemical detection of other biologically important compounds.
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Affiliation(s)
- Sajid Ali Ansari
- Department of Physics, College of Science, King Faisal University, P.O. Box 400, Hofuf, Al-Ahsa 31982, Saudi Arabia.
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Qureshi S, Yusuf A, Ali Shaikh A, Inc M, Baleanu D. Mathematical modeling for adsorption process of dye removal nonlinear equation using power law and exponentially decaying kernels. Chaos 2020; 30:043106. [PMID: 32357674 DOI: 10.1063/1.5121845] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 03/02/2020] [Indexed: 05/21/2023]
Abstract
In this research work, a new time-invariant nonlinear mathematical model in fractional (non-integer) order settings has been proposed under three most frequently employed strategies of the classical Caputo, the Caputo-Fabrizio, and the Atangana-Baleanu-Caputo with the fractional parameter χ, where 0<χ≤1. The model consists of a nonlinear autonomous transport equation used to study the adsorption process in order to get rid of the synthetic dyeing substances from the wastewater effluents. Such substances are used at large scale by various industries to color their products with the textile and chemical industries being at the top. The non-integer-order model suggested in the present study depicts the past behavior of the concentration of the solution on the basis of having information of the initial concentration present in the dye. Being nonlinear, it carries the possibility to have no exact solution. However, the Lipchitz condition shows the existence and uniqueness of the underlying model's solution in non-integer-order settings. From a numerical simulation viewpoint, three numerical techniques having first order convergence have been employed to illustrate the numerical results obtained.
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Affiliation(s)
- Sania Qureshi
- Department of Basic Sciences and Related Studies, Mehran University of Engineering and Technology, 76062 Jamshoro, Pakistan
| | - Abdullahi Yusuf
- Department of Mathematics, Science Faculty, Federal University Dutse, 7156 Jigawa, Nigeria
| | - Asif Ali Shaikh
- Department of Basic Sciences and Related Studies, Mehran University of Engineering and Technology, 76062 Jamshoro, Pakistan
| | - Mustafa Inc
- Department of Mathematics, Science Faculty, Firat University, 23119 Elazig, Turkey
| | - Dumitru Baleanu
- Department of Mathematics, Cankaya University, Ogretmenler Caddesi 14, Balgat, 06530 Ankara, Turkey
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Qureshi S, Yusuf A, Shaikh AA, Inc M, Baleanu D. Fractional modeling of blood ethanol concentration system with real data application. Chaos 2019; 29:013143. [PMID: 30709148 DOI: 10.1063/1.5082907] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 01/09/2019] [Indexed: 05/18/2023]
Abstract
In this study, a physical system called the blood ethanol concentration model has been investigated in its fractional (non-integer) order version. The three most commonly used fractional operators with singular (Caputo) and non-singular (Atangana-Baleanu fractional derivative in the Caputo sense-ABC and the Caputo-Fabrizio-CF) kernels have been used to fractionalize the model, whereas during the process of fractionalization, the dimensional consistency for each of the equations in the model has been maintained. The Laplace transform technique is used to determine the exact solution of the model in all three cases, whereas its parameters are fitted through the least-squares error minimization technique. It is shown that the fractional versions of the model based upon the Caputo and ABC operators estimate the real data comparatively better than the original integer order model, whereas the CF yields the results equivalent to the results obtained from the integer-order model. The computation of the sum of squared residuals is carried out to show the performance of the models along with some graphical illustrations.
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Affiliation(s)
- Sania Qureshi
- Department of Basic Sciences and Related Studies, Mehran University of Engineering and Technology, 76062 Jamshoro, Pakistan
| | - Abdullahi Yusuf
- Department of Mathematics, Science Faculty, Firat University, 23119 Elazig, Turkey
| | - Asif Ali Shaikh
- Department of Basic Sciences and Related Studies, Mehran University of Engineering and Technology, 76062 Jamshoro, Pakistan
| | - Mustafa Inc
- Department of Mathematics, Science Faculty, Firat University, 23119 Elazig, Turkey
| | - Dumitru Baleanu
- Institute of Space Sciences, 077125 Magurele, Bucharest, Romania
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Yusuf A, Qureshi S, Inc M, Aliyu AI, Baleanu D, Shaikh AA. Two-strain epidemic model involving fractional derivative with Mittag-Leffler kernel. Chaos 2018; 28:123121. [PMID: 30599538 DOI: 10.1063/1.5074084] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
In the present study, the fractional version with respect to the Atangana-Baleanu fractional derivative operator in the caputo sense (ABC) of the two-strain epidemic mathematical model involving two vaccinations has extensively been analyzed. Furthermore, using the fixed-point theory, it has been shown that the solution of the proposed fractional version of the mathematical model does not only exist but is also the unique solution under some conditions. The original mathematical model consists of six first order nonlinear ordinary differential equations, thereby requiring a numerical treatment for getting physical interpretations. Likewise, its fractional version is not possible to be solved by any existing analytical method. Therefore, in order to get the observations regarding the output of the model, it has been solved using a newly developed convergent numerical method based on the Atangana-Baleanu fractional derivative operator in the caputo sense. To believe upon the results obtained, the fractional order α has been allowed to vary between ( 0 , 1 ] , whereupon the physical observations match with those obtained in the classical case, but the fractional model has persisted all the memory effects making the model much more suitable when presented in the structure of fractional order derivatives for ABC. Finally, the fractional forward Euler method in the classical caputo sense has been used to illustrate the better performance of the numerical method obtained via the Atangana-Baleanu fractional derivative operator in the caputo sense.
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Affiliation(s)
- Abdullahi Yusuf
- Department of Mathematics, Science Faculty, Firat University, 23119 Elazig, Turkey
| | - Sania Qureshi
- Department of Basic Sciences and Related Studies, Mehran University of Engineering and Technology, 76062 Jamshoro, Pakistan
| | - Mustafa Inc
- Department of Mathematics, Science Faculty, Firat University, 23119 Elazig, Turkey
| | - Aliyu Isa Aliyu
- Department of Mathematics, Science Faculty, Federal University Dutse, 7156 Jigawa, Nigeria
| | - Dumitru Baleanu
- Department of Mathematics, Cankaya University, Öǧretmenler Cad 1406530, Ankara, Turkey
| | - Asif Ali Shaikh
- Department of Basic Sciences and Related Studies, Mehran University of Engineering and Technology, 76062 Jamshoro, Pakistan
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Raste PM, Sahoo BK, Gaware JJ, Sharma A, Waikar MR, Shaikh AA, Sonkawade RG. ASSESSMENT OF RADON IN SOIL AND WATER IN DIFFERENT REGIONS OF KOLHAPUR DISTRICT, MAHARASHTRA, INDIA. Radiat Prot Dosimetry 2018; 181:382-387. [PMID: 29562301 DOI: 10.1093/rpd/ncy039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 03/08/2018] [Indexed: 06/08/2023]
Abstract
Researchers have already established that inhalation of high radon concentration is hazardous to human health. Radon concentration has been measured in water and soil, in various part of Kolhapur district has been carried out by the AQTEK Smart RnDuo which is an active device technique. The observed minimum value of the radon mass exhalation rate of the soil is 13.16 ± 0.83 mBq/kg/h and maximum is 35.11 ± 1.84 mBq/kg/h. The minimum value of the Radon concentration in water is 0.33 ± 0.052 Bq/L and maximum is 7.32 ± 0.078 Bq/L. These values of radon concentration are below the action of recommended level by the USEPA, which is set as the maximum contaminant level of 11.1-148 Bq/L of radon in drinking water. Total annual effective dose rate of water is 11 μSv/y. The purpose of present study is to assess radiological risk from consumption of water that provide in Kolhapur district and to evaluate the radon mass exhalation rate of soil in few places of Kolhapur district.
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Affiliation(s)
- P M Raste
- Department of Physics, Shivaji University, Kolhapur (M.S.), India
| | - B K Sahoo
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai (M.S.), India
| | - J J Gaware
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai (M.S.), India
| | - Anil Sharma
- University School of Basic and Applied Sciences, Guru Gobind Singh Indraprasth University, New Delhi, India
| | - M R Waikar
- Department of Physics, Shivaji University, Kolhapur (M.S.), India
| | - A A Shaikh
- Department of Physics, Shivaji University, Kolhapur (M.S.), India
| | - R G Sonkawade
- Department of Physics, Shivaji University, Kolhapur (M.S.), India
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Abstract
We surveyed 70 epileptic patients attending a general neurology clinic and 64 patients attending an epilepsy clinic to determine the incidence of alcohol-related seizures. Seven (10%) of the neurology clinic patients and 9 (15%) of the epilepsy clinic patients reported exacerbation of their seizures with alcohol. In the first group, two had been heavy drinkers when under-age, two had features of alcohol dependence, and three had experienced resolution of seizures following cessation of their drinking. In the second group, five drank 4 units/day or more, and one drank more heavily. The importance of alcohol in the causation of these patients' seizures had not previously been appreciated. The relationship of alcoholism to epilepsy has been recognized for many years, but the role of alcohol in the exacerbation of primary epilepsy, and in triggering seizures in epileptic patients is often not recognized. Control of alcohol ingestion is an important factor in the management of epilepsy.
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Affiliation(s)
- J Heckmatt
- Department of Neurology, Newham General Hospital, London
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Talpur AA, Shaikh AA, Arain MI, Siddiqui AJ. Experience with Extra Hepatic Intra Abdominal Hydatid Cyst. JNMA J Nepal Med Assoc 2015; 53:270-274. [PMID: 27746469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
INTRODUCTION Hydatid disease is a significant health problem with their location at Extrahepatic Intra abdominal sites is a very rare disease. Disease in these sites usually found concurrently with liver hydatid disease. Diagnosis is based blood tests & imaging studies. Surgery is the mainstay of treatment. This study will help us in determining the frequency of Extra Hepatic Intra Abdominal Hydatid Disease. Also different methods to diagnose & treat the disease will be evaluated. METHODS It includes patients of extra hepatic intra abdominal Hydatid cyst above 13 years and underwent surgery from 2009 to 2014. Variables include age, sex, clinical findings, diagnostic investigations, operative findings, operative procedure, post operative complications. RESULTS Eleven patients; 07 male & 04 female; mean age 37.54 years. Most common symptoms were mass in abdomen in 11 patients & dull pain abdomen in 09 (81.8%) patients. Examination revealed non tender mass in epigastric & umbilical region in 04 (36.3%) patients. Ultrasound Abdomen showed hydatid cyst spleen in 02 (18.1%) patients, epigastrium in 04 (36.3%) patients, beneath left crus of diaphragm in 02 (18.1%) patients & right iliac fossa & pelvis in 1 (9.09%) patient. In 02 (18.1%) patients multiple Hydatid cysts were noted. Hydatid cysts liver found in 07 (63.6%) patients. C.T scan Abdomen was performed in 09 (81.8%) patients. Surgical procedures performed include Saucerization & omental packing in liver Hydatid cysts; Splenectomy for Splenic disease & complete excision of remaining intra-abdominal Hydatid cysts. Postoperative complications noted in 05 (45.4%) patients. CONCLUSION Extra hepatic intra abdominal is an infrequent disease presents significant diagnostic & therapeutic challenge for surgeons.
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Affiliation(s)
- A A Talpur
- Department of Surgery, Liaquat University of Medical and Health Sciences Jamshoro, Sind, Pakistan
| | - A A Shaikh
- Department of Surgery, Liaquat University of Medical and Health Sciences Jamshoro, Sind, Pakistan
| | - M I Arain
- Department of Surgery, Liaquat University Hospital Hyderabad/ Jamshoro, Sind, Pakistan
| | - A J Siddiqui
- Department of Surgery, Liaquat University of Medical and Health Sciences Jamshoro, Sind, Pakistan
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Haque F, Rahman MS, Ahmed E, Bakshi PK, Shaikh AA. A Cyclic Voltammetric Study of the Redox Reaction of Cu(II) in Presence of Ascorbic Acid in Different pH Media. ACTA ACUST UNITED AC 2013. [DOI: 10.3329/dujs.v61i2.17064] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The electrochemical redox behavior of Cu(II), and Cu(II) in presence of ascorbic acid has been investigated at glassy carbon electrode (GCE) in aqueous phosphate buffer solution (PBS) at various pH. In the studied pH range the voltammogram consists of a cathodic and an anodic peak. Cu(II) follows one step two-electron transfer electrochemical redox reaction. The intensities of both cathodic and anodic peak current increase with increasing scan rate that are consistent with Randles-Sevcik equation. The linear behavior of peak current with the square root of scan rate indicates that the electrochemical processes are diffusion controlled. In presence of ascorbic acid both of the cathodic and anodic peak current of Cu(II) is reduced and peak positions are shifted compared to those of Cu(II) alone. These observation suggest that Cu(II) undergoes a strong interaction with ascorbic acid in the studied medium. DOI: http://dx.doi.org/10.3329/dujs.v61i2.17064 Dhaka Univ. J. Sci. 61(2): 161-166, 2013 (July)
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Shaikh AA, Özgür C, Jana SK. On generalized pseudo Ricci symmetric manifolds admitting semi-symmetric metric connection. Proc Estonian Acad Sci 2010. [DOI: 10.3176/proc.2010.3.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Shaikh AA, Hui SK. On weak symmetries of trans-Sasakian manifolds. Proc Estonian Acad Sci 2009. [DOI: 10.3176/proc.2009.4.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Shenoy KT, Lena KB, Sali N, Syam S, Shenoy ST, Rajadhyaksha VD, Pai GP, Shaikh AA. Rationale and design for the CARDIOVIT Study (Cardiovit, Atherosclerotic vascular disease and hypeRhomocysteinemia: an epiDemiological study in Indians, additionally evaluating the effect of Oral VITamin supplementation). Curr Med Res Opin 2006; 22:641-8. [PMID: 16684424 DOI: 10.1185/030079906x96344] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND RATIONALE Atherosclerotic vascular disease (AVD), including coronary heart disease (CHD), is on the rise in India. Mortality due to CHD is estimated to be 40% higher in Indian Asians compared with Europeans. Hyperhomocyst(e)inaemia (hypertHcy) is emerging as a novel independent risk factor for AVD. Moreover, there is increasing evidence of its association with CHD in subjects of Indian origin possibly because of inadequate folic acid and B(12) status. However, there is a lack of epidemiological data on its prevalence in Indians. A need to evaluate the optimum dose of folic acid required to reduce plasma homocyst(e)ine (tHcy) also exists. OBJECTIVES AND METHODS The CARDIOVIT study, divided into two stages, is designed to determine the prevalence and relevance of hypertHcy in Indian subjects and also evaluate the tHcy-lowering effect of a marketed multivitamin formulation (Cardiovit). Stage I is a cross-sectional epidemiological study to estimate the prevalence of hypertHcy in a randomly selected population in South India. We planned to screen 2000 subjects between 25 and 64 years of age for established risk factors; plasma tHcy levels will be estimated and the correlation of AVD with established risk factors, plasma tHcy and nutritional factors was evaluated. Subjects having tHcy levels > 12 micromol/L are recruited in Stage II; a randomized, three-arm, double-blind, double-dummy, placebo-controlled, parallel-group, comparative study designed to evaluate the tHcy-lowering effect of a multivitamin formulation containing 300 microg folic acid, 1 microg vitamin B(12) and 1.5 mg vitamin B(6), along with Vitamins A, C, E and selenium. Subjects will be randomized into three groups (n = 64 completed subjects each) and receive either two placebos, or one placebo and multivitamin, or two multivitamin tablets for 6 weeks. Serum vitamin B(12), serum and red cell folate are estimated at baseline and at 6 weeks. Descriptive, univariate analysis, multiple logistic regression model and appropriate statistical tests will be used to analyse the prevalence of hypertHcy, association with risk factors of AVD, efficacy and safety of the multivitamin formulation and other data per protocol. CONCLUSIONS CARDIOVIT is one of the first and largest studies in India to provide insight into the prevalence of hypertHcy, its association with AVD and conventional risk factors and the role of multivitamins in reducing it.
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Kronz JD, Allan CH, Shaikh AA, Epstein JI. Predicting cancer following a diagnosis of high-grade prostatic intraepithelial neoplasia on needle biopsy: data on men with more than one follow-up biopsy. Am J Surg Pathol 2001; 25:1079-85. [PMID: 11474294 DOI: 10.1097/00000478-200108000-00014] [Citation(s) in RCA: 159] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Most studies on the risk of cancer after high-grade prostatic intraepithelial neoplasia (PIN) on biopsy have been small (fewer than 100 men), have not analyzed in detail if histologic features can predict cancer, and have not assessed the risk of cancer with multiple repeat biopsies. We analyzed 245 men in whom the only abnormal finding on the initial biopsy was high-grade PIN and who had at least one follow-up biopsy. Repeat biopsy identified cancer in 32.2% of men. If only one follow-up biopsy had been performed on the 245 men, only 24.5% of men would have been found to have cancer. The only independent histologic predictor of a cancer diagnosis was the number of cores with high-grade PIN; risk of cancer: 30.2% with 1 or 2 cores, 40% with 3 cores, and 75% with >3 cores. The following did not predict cancer: number of high-grade PIN glands, maximum percentage of gland involved by high-grade PIN, nucleolar prominence, percentage of cells with prominent nucleoli, pattern of high-grade PIN (flat, tufting, micropapillary, cribriform), marked pleomorphism, digital rectal examination, transrectal ultrasound findings, family history of prostate cancer, serum prostate specific antigen (PSA) at time of high-grade PIN diagnosis, and rate of change of serum PSA. Eighty-one (33%) men had more than one follow-up biopsy; in these cases the following findings on the original high-grade PIN biopsy predicted cancer: the presence of mitoses, the number of positive cores, predominant micropapillary and cribriform high-grade PIN, and very large prominent nucleoli. Of 81 men with more than one follow-up biopsy, if the first repeat biopsy were benign, high-grade PIN, or atypical, the eventual cancer rate was 10%, 25.9%, and 57.1%, respectively (p = 0.002). Of 15 men with more than two repeat biopsies, only two (13.3%) had cancer. In summary, approximately one third of men with high-grade PIN on biopsy have cancer on follow-up. If cancer is not found on the first two follow-up biopsies, it will unlikely be found. Although clinical findings at the time of diagnosis of high-grade PIN are not useful to predict who might have cancer, histologic findings may help identify who needs additional biopsies.
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Affiliation(s)
- J D Kronz
- Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland 21231, USA
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Abstract
With high-grade prostatic intraepithelial neoplasia with adjacent small atypical glands (PINATYP), the issue is whether the small glands represent budding or tangentially sectioned glands off of adjacent high-grade prostatic intraepithelial neoplasia (PIN) or invasive cancer next to high-grade PIN. The histology and significance of PINATYP on biopsy have not been described. Among 574 cases of high-grade PIN lesions on needle biopsy, we identified 71 cases of PINATYP. Most cases were consultations, and 51 cases were available for histologic review. At least 1 follow-up prostate biopsy was performed in each of 55 cases. Immunohistochemistry for high-molecular-weight cytokeratin (HMWCK) was performed on cases in which material was available. The average patient age at diagnosis was 65.5 years (range, 48 to 103 years). The initial digital rectal examination, transrectal ultrasound, serum prostate-specific antigen (PSA) level, PSA velocity, and family history of prostate cancer did not predict cancer on repeat biopsy. In 39% of cases, high-grade PIN had a predominantly flat pattern, and remaining cases showed a predominance of other patterns (tufting, micropapillary, cribriform). The average number of high-grade PIN glands and adjacent small atypical glands were 11.5 (1 to 60) and 5.3 (1 to 21), respectively. The farthest adjacent small atypical gland averaged 0.12 mm from the high-grade PIN (0.01 mm to 0.4 mm), as measured with an ocular micrometer. The following histologic features did not predict cancer on repeat biopsy: more than 1 core involved by the high-grade PIN; number of high-grade PIN glands; number of small atypical glands; distance of small atypical glands from the high-grade PIN; size and percentage of nucleoli; marked nuclear pleomorphism; and mitoses. Overall, the risk of cancer on repeat biopsy was 46%. Two findings predicted a lower risk of cancer on repeat biopsy: younger age (62.2 years benign v 68.3 years cancer; P =.004) and predominantly flat high-grade PIN (P =.007). In our material, PINATYP appears to be a greater risk factor than high-grade PIN alone in predicting cancer on rebiopsy. Although age and predominant pattern of associated high-grade PIN may be helpful in predicting which men with this lesion will have cancer on rebiopsy, they cannot be used reliably; therefore, all men with PINATYP should undergo repeat biopsy. HUM PATHOL 32:389-395.
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Affiliation(s)
- J D Kronz
- Department of Pathology, The Johns Hopkins Hospital, Baltimore, MD 21231, USA
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Abstract
Atypical cribriform lesions on prostate needle biopsy specimens are rare and difficult to diagnose. Of 574 high-grade prostatic intraepithelial neoplasia (PIN) lesions on needle biopsy seen at our institution over 75 months, we identified 23 consult cases in which the differential diagnosis was cribriform high-grade PIN versus infiltrating cribriform carcinoma. Prebiopsy prostate-specific antigen (PSA) averaged 6.5 ng/mL (range, 0.3 to 37.3). A positive digital rectal examination (DRE) was present in 12 of 22 (55%) patients for whom information was available. Ordinary high-grade PIN was present elsewhere in the biopsy specimens in 32% of cases. The following architectural features of cribriform glands were evaluated: number (mean, 5; range, 1 to 21); largest size (mean, 0.5 mm; range, 0.1 to 1 mm); necrosis (14%); detached cribriform fragments (18%); stromal fibrosis (18%); and bilaterality (22%). Cytologically, there was cellular maturation toward the center of the cribriform glands (45%); identifiable basal cells on hematoxylin and eosin sections (36%); marked nuclear atypia (9%); and mitoses (23%). Nucleoli were not visible in 18% of cases, small in 36%, and prominent in 45%. With a mean follow-up of 13.8 months for those without progression (25.9 months' overall follow-up), a repeat biopsy diagnosis of cancer was seen in 10 of 22 men [by report: Gleason score (Gs) 4 (n = 1); Gs 6 (n = 3); Gs 7 (n = 4); Gs 9 (n = 2); three biopsy specimens showed ductal features]. An additional two men developed bone metastases without biopsy. Overall, 12 of 22 (55%) patients had cancer on follow-up (one patient lost to follow-up). Four clinicopathologic findings predicted carcinoma on follow-up: positive DRE (p = 0.02); positive transrectal ultrasound (p = 0.02); bilateral atypical cribriform glands (p = 0.02); and detached cribriform glands (p = 0.04).
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Affiliation(s)
- J D Kronz
- Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland 21231, USA
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Kulkarni SM, Agarwal HK, Shaikh AA. Torsade de pointes complicating treatment with astemizol. Indian Heart J 1994; 46:179-80. [PMID: 7821942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Affiliation(s)
- S M Kulkarni
- Department of Cardiology, Wanless Hospital, Miraj
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Castracane VD, Shaikh AA. Synergism of estrogen and bromergocryptine in the induction of luteolysis in cynomolgus monkeys (Macaca fascicularis). J Clin Endocrinol Metab 1980; 51:1311-5. [PMID: 7440697 DOI: 10.1210/jcem-51-6-1311] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Sequential administration of estrogen (40 microgram depoestradiol cypionate and estradiol benzoate) on cycle days 18--20 and bromergocryptine (CB-154; 0.5 mg/kg, twice daily) on cycle days 20-22 induced luteolysis in seven of nine cynomolgus monkeys, significantly shortened menstrual cycles (23.5 +/- 0.7 days), and caused a significant decline in plasma progesterone levels during the period of CB-154 administration. Two treated monkeys did not have shortened menstrual cycles, although a luteolytic effect on plasma progesterone was evident. One monkey with a late ovulation (confirmed by endocrine parameters and laparoscopic observation) was treated with the same regimen in the early luteal phase; this also resulted in a decline in plasma progesterone and a shortened luteal phase (11 days). Treatment with the estrogen or the CB-154 component alone had no effect on menstrual cycle length or plasma progesterone levels. Similarly, treatment with CB-154 throughout the luteal phase had no effect on luteal function. An abbreviated treatment consisting of 1 day of estrogen and 1 day of CB-154 administration gave some indication of a luteolytic effect. None of these treatments produced detectable side effects. These studies have demonstrated a synergism of estrogen and CB-154 in the induction of luteolysis in cynomolgus monkeys. The present regimen, because of the effectiveness and apparent lack of side effects, deserves further investigation for possible clinical application.
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Abstract
Earlier studies reported from this laboratory demonstrated the luteolytic effect of a 5-day sequential regimen of 3 days of estrogen overlapped with 3 days of PGF2 alpha administered during the midluteal phase to cynomolgus monkeys. In this study, a different regimen, containing estrogen, lower doses of PGF2 alpha, and methylergonovine maleate (MEM), was used. Individual components of this modified sequential regimen were not effective as luteolytic agents. When 3 days of estrogen (40 micrograms of depoestradiol cypionate [DEC] on the first day and 40 micrograms of estradiol benzoate [EB] on second and third day) was followed by 3 days of MEM (400 micrograms, twice daily) overlapping 1 day of estrogen treatment, there was a significant shortening of the length of the menstrual cycle (less than 26 days) in eight of 10 animals, with a concomitant decline in plasma levels of progesterone. When a low dose of MEM (100 micrograms, twice daily), which was completely ineffective in shortening cycle lengths with the same estrogen treatment, was administered alternately with PGF2 alpha (5 mg twice daily, 11 of 14 animals had shortened cycles, with an associated decline in levels of progesterone. PGF2 alpha and MEM without the estrogen pretreatment did not have a significant effect on cycle lengths or blood levels of progesterone, thus demonstrating a synergism between estrogen and the other compounds in inducing luteolysis. Since the agents used in these sequential regimens have potent effects on the uterus, the treatments were repeated in hysterectomized monkeys to determine whether the uterus was involved in the mediation of luteolysis. These treatments caused a significant drop in plasma levels of progesterone by the tenth day after the preovulatory estrogen peak, thus demonstrating that the uterus is not essential to the luteolytic action.
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Crabbé P, Fillion H, Letourneaux Y, Diczfalusy E, Aedo AR, Goldzieher JW, Shaikh AA, Castracane D. Chemical synthesis and bioassay of anordrin and dinordrin I and II. Steroids 1979; 33:85-96. [PMID: 109951 DOI: 10.1016/s0039-128x(79)80008-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The chemical synthesis of 2 alpha, 17 alpha-diethynyl-A-nor-5 alpha-androstane-2 beta, 17 beta-diol dipropionate (Anordrin) and the corresponding diacetate is reported. Similarly, the preparation of the 2 alpha, 17 alpha-diethynyl-A-nor-5 alpha-estrane-2 beta, 17 beta-diol, its diacetate and dipropionate (Dinordrin I), along with the corresponding 2 beta-epimer (Dinordrin II) from 17 beta-hydroxy-A-nor-5 alpha=estran-2-one is described. In rat uterotrophic activity bioassay, the slope of ethynylestradiol differed significantly from the slopes of the other three compounds, thus vitiating potency estimates with this reference compound. Dinordrin I was 20 times more potent than Anordrin and considerably more potent then Dinordrin II. The single-dose oral antifertility effect in rats generally paralleled uterotrophic activity. Immediate postovulatory contraceptive effectiveness was assessed in adult cycling female baboons given two doses daily for 4 days. Both Anordrin and Dinordrin I showed antifertility activity worthy of further study. Moreover, a definite luteolytic effect, with depression of both plasma estrogen and progesterone levels, was observed with these two steroids.
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Shaikh AA, Naqvi RH, Shaikh SA. Concentrations of oestradiol-17beta and progesterone in the peripheral plasma of the cynomolgus monkey (Macaca fascicularis) in relation to the length of the menstrual cycle and its component phases. J Endocrinol 1978; 79:1-7. [PMID: 101640 DOI: 10.1677/joe.0.0790001] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ninety-three female cynomolgus monkeys were monitored throughout 647 menstrual cycles; 93.2% of these cycles were 22--37 days long and were normally distributed, with a mean of 29.2 days. Menstrual bleeding generally lasted for 3--5 days and was not related to the length of the cycle. The levels of progesterone and oestradiol-17beta in the plasma were measured during the menstrual cycle in 30 monkeys. The concentration of oestradiol-17beta reached a mid-cycle peak on day 11 or 12 of the cycle. The interval between the beginning of the cycle and the oestrogen peak was constant; the interval between the oestrogen peak and the end of the cycle increased or decreased with the cycle length. The level of progesterone began to rise at about the time of the oestrogen peak and remained raised for longer periods as the length of the cycle increased. The length of the menstrual cycle, therefore, appeared to be determined by the duration of the increase in the level of progesterone or by the life of the corpus luteum in the luteal phase. The relationship between the lengths of the cycle and the luteal phase can be defined by the expression: cycle length = 12.6 + 0.96 X length of luteal phase (correlation coefficient = 0.875).
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Spilman CH, Shaikh AA, Harper MJ. Oviductal motility amplitude and ovarian steroid secretion during egg transport in the rabbit. Biol Reprod 1978; 18:409-17. [PMID: 566578 DOI: 10.1095/biolreprod18.3.409] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Brodie AM, Schwarzel WC, Shaikh AA, Brodie HJ. The effect of an aromatase inhibitor, 4-hydroxy-4-androstene-3,17-dione, on estrogen-dependent processes in reproduction and breast cancer. Endocrinology 1977; 100:1684-95. [PMID: 404132 DOI: 10.1210/endo-100-6-1684] [Citation(s) in RCA: 289] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
4-Hydroxy-f-androstene-3,17-dione (4-OH-A) when tested at various concentrations was found to inhibit markedly the conversion of 4-andorstene-3,17-dione to estrogens inhuman placental and rat ovarian microsomes. To obtain evidence that estrogen biosynthesis could also be reduced in vivo with 4-OH-A, rats were treated sc at a dose level of 50 mg/kg body weight. After 3 h the ovarian veins were cannulated and blood collected. Estradiol concentrations in the plasma were reduced by 80% compared to control values during the proestrous surge and on Day 4 of pregnancy. 4-OH-A was also found to be effective in controlling estrogen-dependent reproductive and neoplastic processes. In rats treated from Day 2-7 of pregnancy, implantation of fertilized ova was completely prevented in some rats, while in others either implantation was delayed or the development of implants was retarded. 4-OH-A treatment of rats having estrogen-dependent breast tumors induced by 7,12-dimethylbenz(a)anthracene caused 80% of the tumors to regress significantly in 4 weeks of treatment; 42% of these regressed completely.
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Shaikh AA, Naqvi RH, Saksena SK. Prostaglandins E and F in uterine venous plasma in relation to peripheral plasma levels of progesterone and 20alpha-hydroxyprogesterone in the rat throughout pregnancy and parturition. Prostaglandins 1977; 13:311-20. [PMID: 847234 DOI: 10.1016/0090-6980(77)90010-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Prostaglandins E and F in uterine venous plasma and progesterone (P) and 20alpha-hydroxyprogesterone (20alpha-OH-P) in peripheral plasma were measured by radioimmunoassays throughout pregnancy and parturition in the rat. E Prostaglandins are low (approx. 2 ng/ml) and maintain a more or less constant level throughout most of the pregnancy except just before parturition when they rise to 3.8 ng/ml on day 20. F Prostaglandin levels are always higher than E prostaglandins and show distinct peaks around day 5 (5 ng/ml), day 11 (7 ng/ml), and before parturition (8.4 ng/ml). Progesterone levels are higher than 20alpha-OH-P levels throughout most of the pregnancy (day 6-20); however, during early pregnancy (day 1-5) and before parturition more 20alpha-OH-P than P is present in peripheral blood. The possible role of uterine venous prostaglandin levels in altering the 20alpha-OH-P/P ratio during pregnancy and parturition is discussed.
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Huq MN, Shaikh AA. Incidence of intestinal parasites in children of different socio-economic population of Dacca city. Bangladesh Med Res Counc Bull 1976; 2:1-7. [PMID: 1037191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Stool samples of 1500 children of different socio-economic status of Dacca city was examined for the presence of intestinal parasites. Samples were collected on voluntary basis which may be treated as randomised. Out of these 1500 children, 816 were male and 684 were female. The overall incidence of parasites was 65.80%, the male children slightly prepondering over the female children. Children of age group 6-10 years showed high incidence of almost all the parasites. Children of Basti area showed the highest incidence (about 90%) and most of them harboured multiple parasites. About 27.13% of infants under the age of one year (mostly from Basti area) harboured parasites. Intestinal parasites were observed that both housing and economic status played vital roles in the occurrence of intestinal parasitosis but the housing and environmental conditions were found to be in a stronger position than economic status.
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Castracane VD, Shaikh AA. Effect of decidual tissue on the uterine production of prostaglandins in pseudopregnant rats. J Reprod Fertil 1976; 46:101-4. [PMID: 1271331 DOI: 10.1530/jrf.0.0460101] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The concentration of prostaglandin F (PGF) in uterine vein plasma of non-traumatized pseudopregnant rats and pseudopregnant rats with deciduomata were not significantly different from each other at any of the times of pseudopregnancy studied (Days 7, 10 and 12). There was a significant increase in PGF levels on Day 10 in both groups of pseudopregnant animals (P less than 0-05) compared to the Day 4 values, and PGE values were significantly greater on Day 10 in the decidual tissue-bearing rats (P less than 0-01). A slight but not significant elevation in PGE concentration was observed on Days 7 and 12 in rats with deciduomata, but there was no significant difference in the control rats on Days 4, 7, 10 or 12. The results indicate that the prolongation of pseudopregnancy in rats with deciduomata is not due to a decreased production of uterine PGs and lend support to the recent suggestion of a luteotrophic effect of decidual tissue in the rat.
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Abstract
Aspirin and indomethacin, inhibitors of prostaglandin biosynthesis, were utilized to determine the role of prostaglandins (PGs) in ovarian weight gain in rats following unilateral ovariectomy or treatment with PMSG. After unilateral ovariectomy, the compensatory ovarian hypertrophy was 185-0% compared with 139-8% and 97-5% in rats treated with indomethacin and aspirin, respectively. The adrenal weights in rats treated with aspirin were also reduced significantly. Administration of PGE2 or PGF2alpha with aspirin reversed the effect of aspirin on the adrenals but had no effect on the ovarian weight. Indomethacin and aspirin treatment of animals injected with PMSG also reduced the ovarian weight gain. If 100 mug PGE2 were given twice daily, this effect was reversed in both groups but thrice daily administration had no effect on rats receiving aspirin. In PMSG-treated rats, 100 mug PGF2alpha twice daily did not reverse the effect of indomethacin and aspirin, and actually enhanced the effect of aspirin.
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Shaikh AA, Shaikh SA. Adrenal and ovarian steroid secretion in the rat estrous cycle temporally related to gonadotropins and steroid levels found in peripheral plasma. Endocrinology 1975; 96:37-44. [PMID: 1167355 DOI: 10.1210/endo-96-1-37] [Citation(s) in RCA: 92] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This study was undertaken to determine the patterns of estrogen and progestin secretion by the adrenal and the ovary and to relate these to the levels of steroids and gonadotropins found in peripheral plasma. A total of 70 rats were used in this study. Adrenal venous (ADVB) and ovarian venous blood (OVB) were collected by concurrent cannulation and peripheral blood (PB) was obtained from the abdominal aorta. Estrone (E1), estradiol (E2), PROGESTERONE (P) and 17alpha-hydroxyprogesterone (17alpha-OHP) were measured by radioimmunoassay. The concentration of E2 in general was higher in ADVB than in OVB. Although increased levels of E2 in ADVB were found on the afternoon of proestrus (1527-2634 pg/ml), they were not significantly different from those recorded at other times. In contrast E2 in OVB was lowest at 1000-1200 hr of estrus (225 pg/ml) and highest at 1000-2000 hr of proestrus (1190-1605 pg/ml). The E2 in PB followed the pattern seen in OVB; the values ranged from 80-211 pg/ml. P concentration in general was higher in ADVB than in OVB. The lowest concentration of P in ADVB was between 0200-0400 hr of estrus (183 ng/ml) and the highest between 1400-1600 hr of proestrus (580 ng/ml) and 1000-1200 hr of estrus (591 ng/ml). The lowest concentration of P in the OVB was between 1600-1800 hr of diestrus (42 ng/ml) and the highest between 0200-0400 hr of estrus (466 ng/ml). In the PB, P reflected changes in adrenal as well as ovarian secretion; the values ranged fron 7-25 ng/ml. E1 in ADVB was in general lower than in OVB, and there were no significant changes at any stage of the cycle. In the OVB, however, E1 showed a pattern similar to that of E2. Levels of E1 in PB were very low and failed to show any significant changes. 17alpha-OHP was high in ADVB, although there were no significant changes during the cycle; PB levels also did not show any significant changes. In the OVB a peak of 17alpha-OHP was recorded between 0200-0400 hr on the day of estrus. The LH and FSH levels showed increases after 1600 hr on the day of proestrus and this was in agreement with earlier studies. Since the adrenal secretes all of the 4 steroids studied, it is reasonable to assume that it does exert some effect in the pituitary-gonadal axis. A role of adrenal P for the facilitation of the preovulatory LH release has been indicated and the increased secretion of adrenal P between 1400-1600 hr of proestrus supports this possibility.
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Saksena SK, Lau IF, Shaikh AA. Cyclic changes in the uterine tissue content of F-prostaglandins and the role of prostaglandins in ovulation in mice. Fertil Steril 1974; 25:636-43. [PMID: 4858379 DOI: 10.1016/s0015-0282(16)40521-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Castracane VD, Saksena SK, Shaikh AA. Effect of IUDs, prostaglandins and indomethacin on decidual cell reaction in the rat. Prostaglandins 1974; 6:397-404. [PMID: 4851720 DOI: 10.1016/0090-6980(74)90014-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Shaikh AA, Klaiber EL. Effects of sequential treatment with estradiol and PGF2alpha on the length of the primate menstrual cycle. Prostaglandins 1974; 6:253-62. [PMID: 4208678 DOI: 10.1016/s0090-6980(74)80052-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Saksena SK, Shaikh AA. Effect of intrauterine devices on preovulatory LH and progesterone levels in the cyclic hamster. J Reprod Fertil 1974; 38:205-10. [PMID: 4858277 DOI: 10.1530/jrf.0.0380205] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Saksena SK, Watson DT, Lau IF, Shaikh AA. Peripheral plasma levels of E and F series prostaglandins during pseudopregnancy in the rat. Prostaglandins 1974; 5:557-65. [PMID: 4822202 DOI: 10.1016/s0090-6980(74)80030-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Shaikh AA, Gulati OD, Parikh HM. Effect of imipramine on adrenergic responses. Indian J Physiol Pharmacol 1973; 17:299-309. [PMID: 4369955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Saksena SK, Shaikh SA, Shaikh AA. Uterine and peripheral plasma F-prostaglandins correlated with peripheral progesterone in cyclic rats. Prostaglandins 1973; 4:243-9. [PMID: 4738129 DOI: 10.1016/0090-6980(73)90042-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Shaikh AA, Birchall K, Saksena SK. Steroids in the ovarian venous plasma and F prostaglandins in the peripheral plasma during pseudopregnancy and days 1-9 of pregnancy in the golden hamster. Prostaglandins 1973; 4:17-30. [PMID: 4728435 DOI: 10.1016/0090-6980(73)90052-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Shaikh AA, Harper MJ. Ovarian steroid secretion in estrous, mated and HCG-treated rabbits, determined by concurrent cannulation of both ovarian veins. Biol Reprod 1972; 7:387-97. [PMID: 4673974 DOI: 10.1093/biolreprod/7.3.387] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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Shaikh AA, Riegle GD, Adams T. Thermoregulatory effects of electro-anesthesia in sheep. Proc Soc Exp Biol Med 1968; 128:836-40. [PMID: 5668139 DOI: 10.3181/00379727-128-33137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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47
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Shah RK, Shaikh AA, Rabari LF. Delocalized pi-electrons and odours. Nature 1968; 218:593-4. [PMID: 5655192 DOI: 10.1038/218593a0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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