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1.
Acta Endocrinol (Buchar) ; 18(1): 106-114, 2022.
Article in English | MEDLINE | ID: mdl-35975261

ABSTRACT

Context: The clinical presentation of histoplasmosis is varied. Due to its propensity for adrenal involvement, histoplasmosis is an important differential diagnosis in any patient presenting with adrenal mass, bilateral in particular. Objective: Data on clinical presentation, pattern of adrenal involvement, radiological appearance and long-term follow-up of adrenal histoplasmosis are relatively sparse; hence we looked at it. Design: This record based single-centre retrospective study was conducted in one of the tertiary care hospitals, situated in eastern India catering the Gangetic delta. Subjects and methods: Data on demographic characters, presenting manifestations, biochemical & hormonal parameters and radiological appearance of confirmed adrenal histoplasmosis cases (n=9), admitted between 2015-2019 have been retrieved. The treatment outcome and condition of patients after 1-4 years of follow-up has also been discussed. Results: Four out of the nine (44.4%) patients had predisposing immunocompromised conditions in the form of diabetes and/or chronic alcoholism while rest were immunocompetent. Seven out of nine patients (77.8 %) had signs and symptoms suggestive of adrenal insufficiency, while two (22.2%) presented with only pyrexia of unknown origin. All of them had bilateral adrenal mass, though the radiologically appearances were different. All patients received anti-fungal agents with/without hydrocortisone and/or fludrocortisone. One patient died (11.1%), while majority responded favourably to treatment. Adrenocortical function did not recover completely. Conclusions: The possibility of adrenal histoplasmosis should always be considered in patients presenting with bilateral adrenal mass, irrespective of adrenal morphology. Treatment is effective, but many of them require supplemental hydrocortisone for quite a long period, if not lifelong. Mineralocorticoid deficiency, however, is not permanent.

2.
J Med Eng Technol ; 46(4): 265-269, 2022 May.
Article in English | MEDLINE | ID: mdl-35212582

ABSTRACT

Joint inflammation results from soft-tissue injuries and cartilage damage. PRICE is the standard treatment approach for acute soft tissue injuries like ankle sprain. Electrical stimulation, application of orthotic braces, etc. is also effective for this. In a synergistic device all these components are combined and applied simultaneously. This device was developed for joint inflammation and tested for grade I & II acute ankle joint sprain. To test a synergistic - semirigid device, combining PRICE & electrical stimulation for acute ankle sprains of grades I & II for pain, range of motion and swelling is a case series was the objective. Device was developed using novel concept of synergistic applications of PRICE with electrical stimulation. The joint contour of ankle and specific biomechanical bony surface landmarks were considered. Ethical approval was taken from NTCC committee, AIPT. Recordings were taken from eight patients of acute ankle sprain with - in two days of injury, after getting ethical approval. Elevation to the ankle was provided by keeping the part over the pillow and data was recorded with the help of: 1.VAS scale for pain; 2. Measuring tape; 3. Goniometry. t-test was used to find out the significant difference pre and post the application of device. There was a significant reduction in pain (p = 0.006), edema (p = 0.011), dorsi-flexion (p = 0.015), and plantar flexion (p =0.008). The synegistic device has been effective for acute ankle inflammation - grade I & II ankle sprains in 5 sessions; sufficient for the return of function.


Subject(s)
Ankle Injuries , Sprains and Strains , Ankle Injuries/therapy , Ankle Joint , Humans , Inflammation/therapy , Pain , Sprains and Strains/therapy
3.
Front Pharmacol ; 12: 642067, 2021.
Article in English | MEDLINE | ID: mdl-34916928

ABSTRACT

Berberis aristata DC and Nigella sativa L. are officially listed in various Indian Pharmacopoeia and AYUSH official documents. Prescribed for different ailments for proven medicinal activities, they thus became part of polyherbal medications. With reverse pharmacology and scientific validation, more than 30 patents are filed on different formulations of B. aristata and granted. Nigella sativa L. has been broadly studied for its therapeutic potential and wide range of activities against cardiovascular, diabetic, cancer, and life style disorders. Thus, this study is aimed at standardizing B. aristata and N. sativa and their antineoplasia activity in 7, 12-dimethylbenz[a]anthracene (DMBA)-induced mouse models. Molecular docking was done using the Schrodinger program Maestro 9.0. Herbal extracts and essential oil (B. aristata and N. sativa) were standardized and quantified using high-performance thin-layer chromatography (HPTLC) (CAMAG) and gas chromatography-mass spectrometry (GCMS) (Agilent 2010GC System) with validated methods. DMBA was administered orally once a week (1mg/200 µL) to each animal except the normal control. Hematology, histopathology, and immunoassays were performed, and data were analyzed and depicted with GraphPad and SPSS. In molecular docking, thymoquinone showed the highest docking score (9.519, 9.211, and 9.042, respectively) in the active site pockets of IL6 (PDB ID: 4CNI and 5FCU), TNF (PDB ID: 2AZ5), and VEGF (PDB ID: 4KZN). Out of all four target sites, thymoquinone and berberine showed good binding affinity with IL6 (PDB ID: 4CNI) compared to α- and ß-pinenes. HPTLC analysis of the hydroalcoholic extract showed the presence of berberine both qualitatively and quantitatively (5.4% berberine), and thymoquinone detected 0.17% in the N. sativa extract. GCMS for essential oil showed 26 compounds including ±pinene. Leukocytes and erythrocytes of N. sativa and B. aristata were analyzed, and significant improvements were recorded (P < 0.05) and graphically presented. Mean survival time was calculated by the Kaplan Meier method (119 days). Immunoassay analyses were conducted, namely, TNF-α and VEGF, and interpreted and marked.

4.
Chem Biol Interact ; 206(2): 153-65, 2013 Nov 25.
Article in English | MEDLINE | ID: mdl-24051192

ABSTRACT

Ursolic acid (UA) is a pentacyclic triterpene naturally occurring in many plant foods. In the present study, we investigated anti-cancer activity of UA in vivo in Ehrlich ascites carcinoma (EAC) tumor. 15 × 10(6) EAC cells were implanted intraperitoneally (i.p., ascitic tumor) and subcutaneous (s.c., solid tumor) in Swiss albino mice. Mice with established tumors received UA i.p. at 25, 50 and 100mg/kg bw for 14 d in ascitic and 100mg/kg bw in solid tumor for 30 d. On day 15, blood samples were collected for hematological assessment of hemoglobin (Hb%), RBCs, WBCs and PCV. Tumor volume, cell viability, angiogenic, anti-angiogenic, anti-inflammatory factors and antioxidant parameters were determined. Immunohistochemistry analysis for VEGF, iNOS, CD31, caspase-3 and Bax were also performed. UA significantly inhibited tumor growth, cell viability, in both ascites and solid tumor model in vivo (p<0.001). The anti-angiogenic effects were accompanied with decreased VEGF, iNOS, TNF-α and increased IL-12 levels. UA at 100mg/kg bw dose significantly increased SOD and CAT activity (p<0.01). GSH and TBARS were increased as compared to control group (p<0.001). Furthermore, UA increased total RBCs, WBCs as well as Hb% significantly (p<0.05) compared to cyclophosphamide (CP). Histopathological examination of tumor cells in the treated group demonstrated signs of apoptosis with chromatin condensation and cell shrinkage. Decreased peritoneal angiogenesis showed the anti-angiogenic potential. UA downregulated VEGF & iNOS expression whereas bax and caspase-3 expressions were upregulated suggesting drug induced tumor cell apoptosis through activating the pro-apoptotic bcl-2 family and caspase-3 and downregulation of VEGF. The present study sheds light on the potent antitumor property of the UA and can be extended further to develop therapeutic protocols for treatment of cancer.


Subject(s)
Antineoplastic Agents, Phytogenic/therapeutic use , Carcinoma, Ehrlich Tumor/drug therapy , Mitochondria/metabolism , Triterpenes/therapeutic use , Animals , Antineoplastic Agents, Phytogenic/pharmacology , Apoptosis/drug effects , Body Weight/drug effects , Carcinoma, Ehrlich Tumor/mortality , Carcinoma, Ehrlich Tumor/pathology , Caspase 3/metabolism , Caspase 9/metabolism , Cell Line, Tumor , Cytokines/metabolism , Down-Regulation/drug effects , Kaplan-Meier Estimate , Mice , Neovascularization, Pathologic , Nitric Oxide/blood , Nitric Oxide Synthase Type II/metabolism , Platelet Endothelial Cell Adhesion Molecule-1/metabolism , Transplantation, Homologous , Triterpenes/pharmacology , Vascular Endothelial Growth Factor A/metabolism , bcl-2-Associated X Protein/metabolism , Ursolic Acid
5.
Chem Biol Interact ; 206(2): 204-13, 2013 Nov 25.
Article in English | MEDLINE | ID: mdl-24060680

ABSTRACT

Punarnavine, a quinolizidine alkaloid isolated from Boerhaavia diffusa is known to possess analgesic, anti-inflammatory, hepato-protective, immunomodulatory and anti-proliferative properties. However, its roles in tumor angiogenesis and the involved molecular mechanism are still unknown. Therefore, we examined its anti-angiogenic effects and mechanisms in vitro and in vivo. We examined the effect of punarnavine on VEGF-A expression by RT-PCR, Western blotting and ELISA. In vivo antiangiogenic activity was determined using sponge implant angiogenesis assay and antitumor activity was evaluated against Ehrlich ascites carcinoma tumor. Punarnavine significantly inhibited endothelial cell migration and invasion and capillary structure formation of HUVECs. Punarnavine significantly at 50 µM inhibited MMP-2 and MMP-9 expression in HUVECs in vitro. Punarnavine inhibited neovascularization in sponge implant assay. Punarnavine (15 mg/kg bw/d) treatment showed dose-dependent decrease in the ascitic fluid volume by 60.94% and tumor volume by 86.40% in Ehrlich ascites model. Reduction in peritoneal angiogenesis with punarnavine treatment suggests the anti-angiogenic activity of punarnavine. The present study sheds light on the potent anti-angiogenic of the punarnavine and can be extended further to develop therapeutic protocols for treatment of cancer.


Subject(s)
Alkaloids/pharmacology , Angiogenesis Inhibitors/pharmacology , Antineoplastic Agents, Phytogenic/pharmacology , Down-Regulation/drug effects , Nyctaginaceae/chemistry , Vascular Endothelial Growth Factor A/genetics , Vascular Endothelial Growth Factor A/metabolism , Alkaloids/chemistry , Alkaloids/isolation & purification , Angiogenesis Inhibitors/chemistry , Angiogenesis Inhibitors/isolation & purification , Animals , Antineoplastic Agents, Phytogenic/chemistry , Body Weight/drug effects , Cell Line, Tumor , Cell Movement/drug effects , Cell Proliferation/drug effects , Human Umbilical Vein Endothelial Cells , Humans , Matrix Metalloproteinase 2/metabolism , Matrix Metalloproteinase 9/metabolism , Mice , Neovascularization, Pathologic , Transplantation, Heterologous
6.
Chem Biol Interact ; 206(2): 214-21, 2013 Nov 25.
Article in English | MEDLINE | ID: mdl-24060683

ABSTRACT

We evaluated the effects of brucine on N-nitrosodiethylamine (DENA)-induced hepatocarcinogenesis in rats. Initiation of hepatocarcinogenesis was done by intraperitoneal injection of diethylnitrosamine (DENA) followed by promotion with phenobarbital. The rats were exposed to dietary brucine for 4 weeks prior to initiation, and the treatment was continued for 22 consecutive weeks. Brucine decreased the incidence, total number, multiplicity, size and volume of preneoplastic hepatic nodules in a dose-dependent manner. Administration of DENA induced hepatocellular carcinoma (HCC), as evidenced by changes in histopathological architecture, increased activity of cytochrome P450, decreased activity of glutathione Stransferase (GST) as well as decreased antioxidant status, enhanced lipid peroxidation, increased liver marker enzymes. Western blot analysis showed decreased expression of cyclin D1 and Bcl-2 with activation of caspase-3 and increased expression of Bax. Immunohistochemical demonstrated the decreased expression of the PCNA and VEGF. These results indicate that brucine prevents lipid peroxidation and hepatic cell damage and also protects the antioxidant system in DENA-induced hepatocarcinogenesis.


Subject(s)
Anticarcinogenic Agents/pharmacology , Apoptosis/drug effects , Strychnine/analogs & derivatives , Alkylating Agents/toxicity , Animals , Anticarcinogenic Agents/chemistry , Caspase 3/metabolism , Cyclin D1/metabolism , Diethylnitrosamine/toxicity , Female , Gene Expression Regulation/drug effects , Immunohistochemistry , Lipid Peroxidation/drug effects , Liver Neoplasms, Experimental/metabolism , Liver Neoplasms, Experimental/pathology , Phenobarbital/toxicity , Proliferating Cell Nuclear Antigen/metabolism , Proto-Oncogene Proteins c-bcl-2/metabolism , Rats , Rats, Sprague-Dawley , Strychnine/chemistry , Strychnine/pharmacology , Vascular Endothelial Growth Factor A/metabolism , bcl-2-Associated X Protein/metabolism
7.
Cancer Lett ; 332(1): 83-93, 2013 May 10.
Article in English | MEDLINE | ID: mdl-23348691

ABSTRACT

In this study, we investigated the mechanism of brucine in tumor angiogenesis. We found that brucine inhibits VEGF-induced cell proliferation, chemotactic motility, and the formation of capillary-like structures in HUVECs in a dose-dependent manner. Brucine suppresses VEGF- induced p-VEGFR2 kinase activity and inhibits neovascularization in vivo. Brucine inhibits the downstream protein kinases of VEGFR2, including Src, FAK, ERK, AKT and mTOR. And further downregulates levels of VEGF, NO, IL-6, IL-8, TNF-α and IFN-γ in HUVECs. Taken together, our study suggests that brucine potently suppresses angiogenesis by targeting VEGFR2 activation and may be a viable drug candidate in anti-angiogenesis and anti-cancer therapies.


Subject(s)
Angiogenesis Inhibitors/pharmacology , Human Umbilical Vein Endothelial Cells/drug effects , Neovascularization, Physiologic/drug effects , Protein Kinase Inhibitors/pharmacology , Signal Transduction/drug effects , Strychnine/analogs & derivatives , Strychnos nux-vomica , Vascular Endothelial Growth Factor A/metabolism , Vascular Endothelial Growth Factor Receptor-2/antagonists & inhibitors , Angiogenesis Inhibitors/isolation & purification , Animals , Carcinoma, Ehrlich Tumor/blood supply , Carcinoma, Ehrlich Tumor/drug therapy , Carcinoma, Ehrlich Tumor/metabolism , Carcinoma, Ehrlich Tumor/pathology , Cell Proliferation/drug effects , Cell Survival/drug effects , Cells, Cultured , Chemotaxis/drug effects , Cytokines/metabolism , Dose-Response Relationship, Drug , Female , Gene Expression Regulation , Human Umbilical Vein Endothelial Cells/enzymology , Humans , Male , Mice , Nitric Oxide/metabolism , Phosphorylation , Plants, Medicinal , Protein Kinase Inhibitors/isolation & purification , RNA, Messenger/metabolism , Rats , Rats, Sprague-Dawley , Strychnine/isolation & purification , Strychnine/pharmacology , Strychnos nux-vomica/chemistry , Time Factors , Tissue Culture Techniques , Tumor Burden/drug effects , Vascular Endothelial Growth Factor Receptor-2/genetics , Vascular Endothelial Growth Factor Receptor-2/metabolism
8.
Indian J Pharm Sci ; 74(1): 24-8, 2012 Jan.
Article in English | MEDLINE | ID: mdl-23204618

ABSTRACT

This study was conducted with the aim to compare two batches each of four popular commercial formulations of Bacopa monnieri (Brahmi), and report, if any, inter-batch variations. The formulations were procured from local market and analyzed for label specifications, uniformity of weight of capsule, identity, purity and strength parameters (total ash content test, acid insoluble ash content, water soluble extractive, alcohol soluble extractive, loss on drying). Bacoside A, one of the pharmacologically active saponin present in B. monnieri, was quantified in all the formulations using UV-spectrophotometer. In addition each formulation was assessed and compared for variation in biological activity using in vitro test for hemolytic activity using human erythrocytes. The results of the study show that there is a wide variation in the quality and content of herbal drugs marketed by different manufacturers. More importantly this study demonstrates that there exists a bigger challenge of batch-to-batch variation in the quality and content of herbal formulations of the same manufacturer. This challenge of providing standardized formulations is being faced by not any one manufacturing house but by all, and may be attributed firstly to, lack of stringent regulations and secondly to high variability in raw material quality.

9.
J Toxicol ; 2012: 237506, 2012.
Article in English | MEDLINE | ID: mdl-22287960

ABSTRACT

The use of tobacco products as dentifrices is still prevalent in various parts of India. Tobacco use in dentifrices is a terrible scourge which motivates continued use despite its harmful effects. Indian legislation prohibits the use of nicotine in dentifrices. Nicotine is primarily injurious to people because it is responsible for tobacco addiction and is dependence forming. The present study was motivated by an interest in examining the presence of nicotine in these dentifrices. Our earlier report indicates the presence of nicotine in toothpowders. To further curb the menace of tobacco, our team again analysed the toothpowder brands of previous years and in toothpastes as well. Eight brands of commonly used toothpastes and toothpowders were evaluated by gas chromatography-mass spectroscopy. On the whole, there are a few successes but much remains to be done. Our findings indicated the presence of nicotine in two brands of dant manjans and four brands of toothpastes. Further our finding underscores the need for stringent regulations by the regulatory authorities for preventing the addition of nicotine in these dentifrices. Hence government policy needs to be targeted towards an effective control of tobacco in these dentifrices and should be properly addressed.

10.
Microvasc Res ; 82(3): 263-8, 2011 Nov.
Article in English | MEDLINE | ID: mdl-21864545

ABSTRACT

The aim of the present study was to investigate the effects of boswellic acid (BA) on key components of inflammatory angiogenesis in the murine cannulated sponge implant angiogenesis model. Polyester-polyurethane sponges, used as a framework for fibrovascular tissue growth, were implanted in Swiss albino mice and BA (12.5 or 25mg/kg/day) was given through installed cannulas for nine days. The implants collected at day 9 post-implantation were processed for the assessment of hemoglobin (Hb). Relevant levels of inflammatory, angiogenic and fibrogenic cytokines were also determined. BA treatment resulted in significant decrease in sponge vascularization (Hb content) and in vascular endothelial growth factor (VEGF) and transforming growth factor (TGF-ß1) at both doses. Further, BA decreased expression of VEGF and CD31 and reduced % microvessel density (MVD) in sponge implants. A regulatory function of BA on multiple parameters of the main components of inflammatory angiogenesis has been revealed giving an insight into the potential therapeutic use underlying the actions of BA.


Subject(s)
Angiogenesis Inhibitors/pharmacology , Anti-Inflammatory Agents/pharmacology , Capillaries/drug effects , Inflammation/prevention & control , Neovascularization, Pathologic/prevention & control , Neovascularization, Physiologic/drug effects , Surgical Sponges , Triterpenes/pharmacology , Animals , Capillaries/metabolism , Capillaries/pathology , Capillaries/physiopathology , Disease Models, Animal , Dose-Response Relationship, Drug , Hemoglobins/metabolism , Inflammation/etiology , Inflammation/metabolism , Inflammation/pathology , Inflammation/physiopathology , Inflammation Mediators/metabolism , Male , Mice , Neovascularization, Pathologic/etiology , Neovascularization, Pathologic/metabolism , Neovascularization, Pathologic/pathology , Neovascularization, Pathologic/physiopathology , Platelet Endothelial Cell Adhesion Molecule-1/metabolism , Polyurethanes , Time Factors , Transforming Growth Factor beta1/metabolism , Tumor Necrosis Factor-alpha/metabolism , Vascular Endothelial Growth Factor A/metabolism
11.
Life Sci ; 89(5-6): 147-58, 2011 Aug 01.
Article in English | MEDLINE | ID: mdl-21684292

ABSTRACT

AIMS: Brucine (BRU), a natural plant alkaloid is reported to possess cytotoxic and antiproliferative activities. In this study we aimed to investigate its in vitro and in vivo antitumor and antiangiogenic effects. MAIN METHODS: Cell proliferation and viability was assessed using microculture tetrazolium tests (MTT). As predictive markers we determined intracellular levels of vascular endothelial growth factor (VEGF), Interleukin-12 (IL-12), tumor necrosis factor (TNF-α), caspase-3, -8 and -9 by ELISA and enzymatic activity assays. In addition, anti-VEGF neutralization effect was evaluated to assess whether it could result in augmented anticancer efficacy than the single agent. Antitumor activity was evaluated against Ehrlich ascites and solid tumor models. 15×10(6) EAC cells were implanted intraperitoneally (i.p., ascites tumor) and subcutaneous (s.c., solid tumor) in Swiss albino mice. Mice with established tumors received brucine i.p. at 12.5, 25, and 50mg/kg for 14days in ascites tumor and 50mg/kg in solid tumor for 30days. Tumor volume, cell viability, angiogenic, anti-angiogenic, anti-inflammatory factors and antioxidant parameters were determined. Immunohistochemistry analysis for VEGF and CD-31 was also performed. KEY FINDINGS: BRU produced time and dose-dependent inhibition of MCF-7 in vitro and EAC tumors in vivo. The anti-angiogenic effects were accompanied with decreased VEGF and TNF-α and increased IL-12 expression. BRU reduced peritoneal angiogenesis and microvessel density in vivo. CONCLUSION: Our findings suggest that BRU possesses antitumor and anti-angiogenic activities in vitro and in vivo. The above results showed that BRU can be used as a potential anticancer agent as an antimetastatic and anti-angiogenic agent.


Subject(s)
Antineoplastic Agents , Carcinoma, Ehrlich Tumor/drug therapy , Strychnine/analogs & derivatives , Animals , Antioxidants/metabolism , Blood Cell Count , Carcinoma, Ehrlich Tumor/blood supply , Carcinoma, Ehrlich Tumor/pathology , Caspases/metabolism , Cell Line, Tumor , Dose-Response Relationship, Drug , Enzyme Activation/drug effects , Female , Humans , Immunohistochemistry , Interleukin-12/analysis , Interleukin-12/metabolism , Mice , Neoplasm Transplantation , Neovascularization, Pathologic/pathology , Oxidative Stress/drug effects , Strychnine/pharmacology , Survival Analysis , Tetrazolium Salts , Thiazoles , Tumor Necrosis Factor-alpha/analysis , Tumor Necrosis Factor-alpha/metabolism , Vascular Endothelial Growth Factor A/analysis , Vascular Endothelial Growth Factor A/metabolism , bcl-2-Associated X Protein/biosynthesis , bcl-2-Associated X Protein/genetics
12.
Food Chem Toxicol ; 49(9): 1924-34, 2011 Sep.
Article in English | MEDLINE | ID: mdl-21513768

ABSTRACT

Boswellic acid (BA), a triterpene, isolated from Boswellia serrata (Burseraceae) has been found to possess potent anti-inflammatory and anti-cancer activity. The present study aimed at exploring the possible role of BA on ascites and solid Ehrlich tumor. Ascitic tumor development was evaluated 14 d after tumor implantation by quantification of the ascitic fluid volume whereas solid tumor was evaluated after 30 d tumor implantation by H&E and IHC. The i.p. administration of BA significantly inhibited ascitic and solid Ehrlich tumor model. This inhibition was observed with reduced ascitic volume, solid tumor volume and body weight when compared to control mice. The treatments also increased the survival of tumor-bearing mice. VEGF and TNF- α levels were decreased, whereas the IL-12 levels were increased with BA treatment at 25mg/kg. Further, results on decrease in the peritoneal angiogenesis and microvessel density showed the anti-angiogenic potential. Microscopic examination of tumors revealed that in BA-treated groups the expression of Bax and caspase 3 increased, suggesting drug induced tumor cell apoptosis through activating the pro-apoptotic bcl-2 family and caspase-3. The present study sheds light on the potent antitumor property of the boswellic acid and can be extended further to develop therapeutic protocols for treatment of cancer.


Subject(s)
Carcinoma, Ehrlich Tumor/pathology , Triterpenes/pharmacology , Animals , Dose-Response Relationship, Drug , Female , Immunohistochemistry , Mice
13.
Eur J Contracept Reprod Health Care ; 16(2): 142-6, 2011 Apr.
Article in English | MEDLINE | ID: mdl-21281096

ABSTRACT

OBJECTIVE: To evaluate the anti-ovulatory activity of H(2) receptor blockers (ranitidine, famotidine and roxatidine) in albino rabbits considering the role of histamine in ovulation. METHOD: The drugs were orally administered once daily for three days to adult female rabbits weighing between 1.3-2.0 kg (four groups of three animals). The control group received the 1% weight/volume gum acacia suspension. Thirty minutes after the administration of the last dose, a freshly prepared 0.4 % solution of cupric acetate was administered to each animal intravenously via the marginal ear vein (4 mg/kg body weight) to induce ovulation. To assess ovulation, laparotomy was carried out 48 h after cupric acetate injection. The ovaries were exposed, bleeding points on each ovary were counted, and the ovaries and uteri were subjected to histopathological evaluation. RESULTS: Based on the number of bleeding points (ovulation sites) observed on the ovary, H(2) blockers showed varying degrees of anti-ovulatory activity. Roxatidine exerted the most pronounced activity. Histopathological observations of uterus and ovary confirmed the aforementioned observations. CONCLUSION: H(2) receptor blockers appeared to inhibit the cupric acetate-induced ovulation in albino rabbits. Our results seem to confirm the role of histamine in ovulation reported by other authors.


Subject(s)
Contraceptive Agents/pharmacology , Famotidine/pharmacology , Histamine H2 Antagonists/pharmacology , Histamine Release/drug effects , Ovulation/drug effects , Piperidines/pharmacology , Ranitidine/pharmacology , Administration, Oral , Animals , Contraceptive Agents/administration & dosage , Dose-Response Relationship, Drug , Female , Rabbits , Random Allocation
14.
Eur J Contracept Reprod Health Care ; 14(6): 444-50, 2009 Dec.
Article in English | MEDLINE | ID: mdl-19929648

ABSTRACT

OBJECTIVE: To evaluate the anti-implantation activity of H(2) receptor blockers ranitidine and famotidine, and Cox-inhibitor meloxicam, alone and in combination, considering the role of histamine and prostaglandins in implantation. METHOD: The drugs were administered orally to female albino Wistar rats at different dose levels for 1 to 7 days, immediately after confirming copulation by observing sperm in the vaginal smear. A laparotomy was done on the 10th day of pregnancy, the implants and corpora lutea were counted, and the pre- and post implantation losses determined. The mast cell stabilising activity was studied using both in vitro and in vivo methods. RESULTS: Ranitidine 70 mg/kg (75.41%; p < 0.01), and famotidine 80 mg/kg (74.30%; p < 0.001) showed significant anti-fertility activity. No increase in activity was seen at higher doses. Meloxicam showed significant activity at doses of 3, 4, and 5 mg/kg. The combination of meloxicam (4 mg/kg) with ranitidine (70 mg) and famotidine (80 mg/kg) showed 100% anti-fertility activity. CONCLUSION: Our results indirectly confirm the combined involvement of histamine and prostaglandins in the implantation process. The mast cell stabilising property of H(2) blockers appears to be a possible mechanism for their anti-implantation activity.


Subject(s)
Contraceptive Agents/pharmacology , Cyclooxygenase Inhibitors/pharmacology , Embryo Implantation/drug effects , Histamine H2 Antagonists/pharmacology , Thiazines/pharmacology , Thiazoles/pharmacology , Administration, Oral , Animals , Dose-Response Relationship, Drug , Drug Therapy, Combination , Famotidine/pharmacology , Female , Meloxicam , Pregnancy , Ranitidine/pharmacology , Rats , Rats, Wistar
15.
Ophthalmic Res ; 42(2): 112-6, 2009.
Article in English | MEDLINE | ID: mdl-19556826

ABSTRACT

AIM: The present study was designed to evaluate the intraocular pressure (IOP)-lowering activity of topical application of the aqueous extract of Aegle marmelos fruit in experimental animal models. MATERIALS AND METHODS: New Zealand white rabbits with normal and experimentally elevated IOP using water loading and steroid-induced models were included in this study. The IOP-lowering effect of A. marmelos fruit extract in rabbits with experimentally elevated IOP was also compared with that of timolol 0.25%. RESULTS: In rabbits with normal IOP, the A. marmelos fruit extract at a concentration of 1% showed the maximum IOP-lowering effect with 22.81% reduction from baseline IOP. The maximum IOP reduction achieved in water loading and steroid-induced models with the same concentration of A. marmelos was 27.57 and 28.41% from baseline, respectively. The efficacy was comparable to that of timolol after 45 min of water loading in the water loading model, and during the first 2 h of treatment in the steroid-induced model. CONCLUSION: A. marmelos fruit extract showed significant IOP-lowering activity in experimental animal models.


Subject(s)
Aegle/chemistry , Antihypertensive Agents/therapeutic use , Disease Models, Animal , Fruit , Intraocular Pressure/drug effects , Phytotherapy , Plant Extracts/therapeutic use , Administration, Topical , Animals , Glaucoma/drug therapy , Ocular Hypertension/drug therapy , Rabbits , Timolol/therapeutic use , Tonometry, Ocular
16.
Indian J Ophthalmol ; 57(3): 175-83, 2009.
Article in English | MEDLINE | ID: mdl-19384010

ABSTRACT

Cataractous-opacification of the lens is one of the leading causes of blindness in India. The situation can be managed by surgical removal of the cataractous lens. Various pharmacological strategies have been proposed for the prevention and treatment of cataract. Information on possible benefits of putative anticataract agents comes from a variety of approaches, ranging from laboratory experiments, both in vitro and in vivo , to epidemiological studies in patients. This review deals with the various mechanisms, and possible pharmacological interventions for the prevention of cataract. The article also reviews research on potential anticataractous agents, including aldose reductase inhibitors, glutathione boosters, antiglycating agents, vitamins and various drugs from indigenous sources.


Subject(s)
Cataract/prevention & control , Pharmaceutical Preparations , Aldehyde Reductase/antagonists & inhibitors , Antioxidants/administration & dosage , Cataract/etiology , Glutathione/administration & dosage , Humans , Risk Factors , Vitamins/administration & dosage
17.
Food Chem Toxicol ; 47(3): 511-24, 2009 Mar.
Article in English | MEDLINE | ID: mdl-19135499

ABSTRACT

The use of tobacco products as dentrifice is prevalent in various parts of India. Among them toothpowder (dant manjan) is very common. These nicotine containing toothpastes/toothpowders are health hazards and is also habit forming. Health experts of India rightly banned use of nicotine containing toothpowder as early as 1992 by making proper legislation. We just made an attempt to verify whether the manufacturers complying the legislation or not. Eight leading brands of toothpowders were analyzed qualitatively by gas chromatography-mass spectrum detector and also quantitatively by gas chromatography-nitrogen phosphorus detector. Our results indicated four brands were found to contain nicotine in the range of 2.53 microg/g to 11.50 mg/g of toothpowder. This finding further confirms that addition of nicotine in dentifrice violates the regulatory norms. Regulatory authorities should give more attention to ensure that all toothpowders are free from nicotine which is also a statutory requirement.


Subject(s)
Dentifrices/chemistry , Nicotine/analysis , Dentifrices/adverse effects , Gas Chromatography-Mass Spectrometry , India
18.
Indian J Exp Biol ; 47(10): 822-6, 2009 Oct.
Article in English | MEDLINE | ID: mdl-20112810

ABSTRACT

One of the major etiologies in pathogenesis of type 2 diabetes especially complications is oxidative stress. Aqueous extract of Ficus religiosa at a dose of 100 and 200 mg/kg orally decreased the fasting blood glucose in streptozotocin induced type 2 diabetic rats. The drug had enzyme induction effect with respect to catalase (CAT) and glutathione peroxidase (GSH-Px) activity, however decreased the exaggerated activity of superoxide dismutase (SOD) in type 2 diabetic rats. F. religiosa modulated the enzymes of antioxidant defence system to combat oxidative stress. As a result, glutathione (GSH-reduced form) was restored and inhibited the formation of malondialdehyde. Drug at higher dose (200 mg/kg) had more pronounced effect. F. religiosa, a rasayana group of plant drug having anti-diabetic activity along with antioxidant potential was beneficial in treatment of type 2 diabetes.


Subject(s)
Diabetes Mellitus, Experimental/metabolism , Ficus/chemistry , Oxidative Stress/drug effects , Plant Extracts/pharmacology , Animals , Female , Male , Rats , Rats, Wistar , Water
19.
Indian J Exp Biol ; 46(7): 541-6, 2008 Jul.
Article in English | MEDLINE | ID: mdl-18807759

ABSTRACT

In normotensive rabbits topical application of Daucus carota seed extract at the concentration of 0.3, 0.6 and 1.2% resulted in mean IOP reduction of 19.33. 23.20 and 25.61% respectively from baseline. As no significant difference was observed between the change in IOP in 0.6 and 1.2% extract treated groups, 0.6% concentration was chosen for further evaluation in rabbits with experimentally elevated IOP. In water loaded rabbits, maximum mean IOP reduction with 0.6% extract was 29.39%, which was comparable to pilocarpine. In steroid pretreated rabbits, maximum mean IOP reduction was 30.27% from baseline, which was significantly higher than pilocarpine. The extract showed a comparatively slower onset of action however, the duration of action was comparable to pilocarpine in all the experimental models.


Subject(s)
Daucus carota/chemistry , Intraocular Pressure/drug effects , Plant Extracts/chemistry , Plant Extracts/pharmacology , Seeds/chemistry , Animals , Eye/drug effects , Rabbits
20.
Int J Antimicrob Agents ; 32(2): 180-5, 2008 Aug.
Article in English | MEDLINE | ID: mdl-18571386

ABSTRACT

A polyherbal cream (Basant) has been formulated using diferuloylmethane (curcumin), purified extracts of Emblica officinalis (Amla), purified saponins from Sapindus mukorossi, Aloe vera and rose water along with pharmacopoeially approved excipients and preservatives. Basant inhibits the growth of WHO strains and clinical isolates of Neisseria gonorrhoeae, including those resistant to penicillin, tetracycline, nalidixic acid and ciprofloxacin. It has pronounced inhibitory action against Candida glabrata, Candida albicans and Candida tropicalis isolated from women with vulvovaginal candidiasis, including three isolates resistant to azole drugs and amphotericin B. Basant displayed a high virucidal action against human immunodeficiency virus HIV-1NL4.3 in CEM-GFP reporter T and P4 (Hela-CD4-LTR-betaGal) cell lines with a 50% effective concentration (EC50) of 1:20000 dilution and nearly complete (98-99%) inhibition at 1:1000 dilution. It also prevented the entry of HIV-1(IIIB) virus into P4-CCR5 cells (EC50 approximately 1:2492). Two ingredients, Aloe and Amla, inhibited the transduction of human papillomavirus type 16 (HPV-16) pseudovirus in HeLa cells at concentrations far below those that are cytotoxic and those used in the formulation. Basant was found to be totally safe according to pre-clinical toxicology carried out on rabbit vagina after application for 7 consecutive days or twice daily for 3 weeks. Basant has the potential of regressing vulvovaginal candidiasis and preventing N. gonorrhoeae, HIV and HPV infections.


Subject(s)
Anti-Infective Agents/pharmacology , Candida/drug effects , HIV-1/drug effects , Human papillomavirus 16/drug effects , Neisseria gonorrhoeae/drug effects , Plant Extracts/pharmacology , Aloe/chemistry , Animals , Anti-Infective Agents/toxicity , Curcumin/chemistry , Female , Genital Diseases, Female/microbiology , Genital Diseases, Female/virology , HeLa Cells , Humans , Phyllanthus emblica/chemistry , Phytotherapy , Plant Extracts/toxicity , Rabbits , Sapindus/chemistry , Vaginal Creams, Foams, and Jellies
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