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Dive into the research topics where Koushik Saha is active.

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Featured researches published by Koushik Saha.


Bangladesh Pharmaceutical Journal | 2018

Analgesic, Antidiarrheal and Antidepressant Activities of Anethum sowa Linn. in Swiss-Albino Mice Model

Muhammad Abdullah Al Mansur; M Mahboob Ali Siddiqi; Koushik Saha

The hexane (HE), dichloromethane (DCME), ethyl acetate (EAE) and methanol (ME) extracts of seed and stem of Anethum sowa were subjected to screenings for analgesic, anti-diarrheal and anti-depressant activities. The peripheral and central analgesic actions were determined by using formalin-induced writhing test and tail immersion method. The DCME extract of stem, at a dose of 200 mg/kg body weight, significantly reduced the number of writhing movements whereas the methanol extract of seed at the same dose exhibited remarkable analgesic activity in tail immersion method. In castor oil induced anti-diarrheal assay, the ethyl acetate extract of stem, at 400 mg/kg body weight, exhibited significant anti-diarrheal effect. In addition, significant anti-depressant activity was observed at a dose of 400 mg/kg body weight as compared to the standard drug in case of HE extract of stem.


Indian Journal of Chemistry Section B-organic Chemistry Including Medicinal Chemistry | 2007

Alkaloids of Sida cordifolia L.

R. K. Sutradhar; A.K.M.Matior Rahman; Mesbah U. Ahmad; Koushik Saha


Asian pacific Journal of Tropical Biomedicine | 2016

Comparative studies of elemental composition in leaves and flowers of Catharanthus roseus growing in Bangladesh

Shahin Aziz; Koushik Saha; Nasim Sultana; Husna Parvin Nur; Md. Aminul Ahsan; Shamim Ahmed; Md. Kamal Hossain


Indian Journal of Pharmaceutical and Biological Research | 2015

Comparative studies of Volatile Components of the essential Oil of leaves and flowers of Catharanthusroseus growing in Bangladesh by GC-MS analysis

Shahin Aziz; Koushik Saha; Prashant V Thakare; Nasim Sultana; Katrun Nada; Mirola Afroze


Dhaka University Journal of Pharmaceutical Sciences | 2018

Phytochemical Screening and GC-MS Chemical Profiling of Ethyl Acetate Extract of Seed and Stem of Anethum sowa Linn.

Muhammad Abdullah Al Mansur; M Mahboob Ali Siddiqi; Ahedul Akbor; Koushik Saha


International Journal of Pharmaceutical and Phytopharmacological Research | 2017

Comparative Studies on Cytotoxic, Antibacterial and Free Radical Scavenging Activity among Different Extracts of Leaves and Flowers of Catharanthus roseus Available in Bangladesh

Shahin Aziz; Koushik Saha; Nasim Sultana; Nazim Uddin Ahmed; Sahana Parveen


Archive | 2016

ISOLATION AND CHARACTERIZATION OF CHEMICAL CONSTITUENTS FROM THE AERIAL PARTS OF SPERMACOCELATIFOLIA AUBLET

Koushik Saha; Thamina Akther; Dilruba Afrose Popy; Zannatul Kowser; Ummey Rayhan; Shahin Aziz


international journal of chemical sciences | 2015

Comparative Studies on the Fatty Acid Composition of Petroleum Ether Extract of Leaves and Flowers of Catharanthus Roseus available in Bangladesh by GC-MS Analysis

Shahin Aziz; Koushik Saha; Nasim Sultana; Husna Parvin Nur; Mala Khan; Shamim Ahmed


Archive | 2015

ISOLATION AND CHARACTERIZATION OF TWO ANTHRAQUINONE DERIVATIVES FROM THE ROOTS OF

Koushik Saha; Fatima Akther Mitu; Syeda Tanjin Ara; Shahin Aziz; Bangladesh Dhaka


international journal of chemical sciences | 2014

Phytochemical and Elemental Screening on Leaves and Flowers of Catharanthus Roseus : An Important Medicinal Plant of Bangladesh

Shahin Aziz; Koushik Saha; Nasim Sultana; Shamim Ahmed; Abdullah Al-Mansur

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Shahin Aziz

Bangladesh Council of Scientific and Industrial Research

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Nasim Sultana

Bangladesh Council of Scientific and Industrial Research

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Shamim Ahmed

Bangladesh Council of Scientific and Industrial Research

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Husna Parvin Nur

Bangladesh Council of Scientific and Industrial Research

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M Mahboob Ali Siddiqi

United International University

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Muhammad Abdullah Al Mansur

Bangladesh Council of Scientific and Industrial Research

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A.K.M.Matior Rahman

Bangladesh University of Engineering and Technology

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Ahedul Akbor

Bangladesh Council of Scientific and Industrial Research

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Mala Khan

Bangladesh Council of Scientific and Industrial Research

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